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authorHans Verkuil <hverkuil@xs4all.nl>2008-05-01 10:31:12 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-05-14 02:54:09 -0300
commit3f98387efa9333c5765d36e144c47c107d6ba64a (patch)
treeb5c8f515aecf306b0e0b6087458d221d9411f6cb /drivers
parent6a4a79355bfa9ae6977556595a68f2e3a0e143f7 (diff)
downloadop-kernel-dev-3f98387efa9333c5765d36e144c47c107d6ba64a.zip
op-kernel-dev-3f98387efa9333c5765d36e144c47c107d6ba64a.tar.gz
V4L/DVB (7854): cx18/ivtv: improve and fix out-of-memory handling
- don't show kernel backtrace when the allocation of the buffers fails: the normal ivtv/cx18 messages are clear enough and the backtrace scares users. - fix cleanup after the buffer allocation fails (caused kernel panic). Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/video/cx18/cx18-driver.c4
-rw-r--r--drivers/media/video/cx18/cx18-queue.c6
-rw-r--r--drivers/media/video/cx18/cx18-streams.c13
-rw-r--r--drivers/media/video/cx18/cx18-streams.h2
-rw-r--r--drivers/media/video/ivtv/ivtv-driver.c4
-rw-r--r--drivers/media/video/ivtv/ivtv-queue.c12
-rw-r--r--drivers/media/video/ivtv/ivtv-streams.c13
-rw-r--r--drivers/media/video/ivtv/ivtv-streams.h2
-rw-r--r--drivers/media/video/ivtv/ivtv-yuv.c2
-rw-r--r--drivers/media/video/ivtv/ivtvfb.c6
10 files changed, 37 insertions, 27 deletions
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 7813380..9453223 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -805,7 +805,7 @@ static int __devinit cx18_probe(struct pci_dev *dev,
return 0;
free_streams:
- cx18_streams_cleanup(cx);
+ cx18_streams_cleanup(cx, 1);
free_irq:
free_irq(cx->dev->irq, (void *)cx);
free_i2c:
@@ -908,7 +908,7 @@ static void cx18_remove(struct pci_dev *pci_dev)
cx18_halt_firmware(cx);
- cx18_streams_cleanup(cx);
+ cx18_streams_cleanup(cx, 1);
exit_cx18_i2c(cx);
diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c
index 65af1bb..4ef6996 100644
--- a/drivers/media/video/cx18/cx18-queue.c
+++ b/drivers/media/video/cx18/cx18-queue.c
@@ -239,12 +239,12 @@ int cx18_stream_alloc(struct cx18_stream *s)
/* allocate stream buffers. Initially all buffers are in q_free. */
for (i = 0; i < s->buffers; i++) {
- struct cx18_buffer *buf =
- kzalloc(sizeof(struct cx18_buffer), GFP_KERNEL);
+ struct cx18_buffer *buf = kzalloc(sizeof(struct cx18_buffer),
+ GFP_KERNEL|__GFP_NOWARN);
if (buf == NULL)
break;
- buf->buf = kmalloc(s->buf_size, GFP_KERNEL);
+ buf->buf = kmalloc(s->buf_size, GFP_KERNEL|__GFP_NOWARN);
if (buf->buf == NULL) {
kfree(buf);
break;
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index afb141b..4ca9d84 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -218,7 +218,7 @@ int cx18_streams_setup(struct cx18 *cx)
return 0;
/* One or more streams could not be initialized. Clean 'em all up. */
- cx18_streams_cleanup(cx);
+ cx18_streams_cleanup(cx, 0);
return -ENOMEM;
}
@@ -296,12 +296,12 @@ int cx18_streams_register(struct cx18 *cx)
return 0;
/* One or more streams could not be initialized. Clean 'em all up. */
- cx18_streams_cleanup(cx);
+ cx18_streams_cleanup(cx, 1);
return -ENOMEM;
}
/* Unregister v4l2 devices */
-void cx18_streams_cleanup(struct cx18 *cx)
+void cx18_streams_cleanup(struct cx18 *cx, int unregister)
{
struct video_device *vdev;
int type;
@@ -319,8 +319,11 @@ void cx18_streams_cleanup(struct cx18 *cx)
cx18_stream_free(&cx->streams[type]);
- /* Unregister device */
- video_unregister_device(vdev);
+ /* Unregister or release device */
+ if (unregister)
+ video_unregister_device(vdev);
+ else
+ video_device_release(vdev);
}
}
diff --git a/drivers/media/video/cx18/cx18-streams.h b/drivers/media/video/cx18/cx18-streams.h
index 8c7ba7d..f327e94 100644
--- a/drivers/media/video/cx18/cx18-streams.h
+++ b/drivers/media/video/cx18/cx18-streams.h
@@ -24,7 +24,7 @@
u32 cx18_find_handle(struct cx18 *cx);
int cx18_streams_setup(struct cx18 *cx);
int cx18_streams_register(struct cx18 *cx);
-void cx18_streams_cleanup(struct cx18 *cx);
+void cx18_streams_cleanup(struct cx18 *cx, int unregister);
/* Capture related */
int cx18_start_v4l2_encode_stream(struct cx18_stream *s);
diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index a0756a9..797e636 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -1232,7 +1232,7 @@ static int __devinit ivtv_probe(struct pci_dev *dev,
return 0;
free_streams:
- ivtv_streams_cleanup(itv);
+ ivtv_streams_cleanup(itv, 1);
free_irq:
free_irq(itv->dev->irq, (void *)itv);
free_i2c:
@@ -1377,7 +1377,7 @@ static void ivtv_remove(struct pci_dev *pci_dev)
flush_workqueue(itv->irq_work_queues);
destroy_workqueue(itv->irq_work_queues);
- ivtv_streams_cleanup(itv);
+ ivtv_streams_cleanup(itv, 1);
ivtv_udma_free(itv);
exit_ivtv_i2c(itv);
diff --git a/drivers/media/video/ivtv/ivtv-queue.c b/drivers/media/video/ivtv/ivtv-queue.c
index 3e1deec..fc8b1ea 100644
--- a/drivers/media/video/ivtv/ivtv-queue.c
+++ b/drivers/media/video/ivtv/ivtv-queue.c
@@ -203,14 +203,14 @@ int ivtv_stream_alloc(struct ivtv_stream *s)
s->dma != PCI_DMA_NONE ? "DMA " : "",
s->name, s->buffers, s->buf_size, s->buffers * s->buf_size / 1024);
- s->sg_pending = kzalloc(SGsize, GFP_KERNEL);
+ s->sg_pending = kzalloc(SGsize, GFP_KERNEL|__GFP_NOWARN);
if (s->sg_pending == NULL) {
IVTV_ERR("Could not allocate sg_pending for %s stream\n", s->name);
return -ENOMEM;
}
s->sg_pending_size = 0;
- s->sg_processing = kzalloc(SGsize, GFP_KERNEL);
+ s->sg_processing = kzalloc(SGsize, GFP_KERNEL|__GFP_NOWARN);
if (s->sg_processing == NULL) {
IVTV_ERR("Could not allocate sg_processing for %s stream\n", s->name);
kfree(s->sg_pending);
@@ -219,7 +219,8 @@ int ivtv_stream_alloc(struct ivtv_stream *s)
}
s->sg_processing_size = 0;
- s->sg_dma = kzalloc(sizeof(struct ivtv_sg_element), GFP_KERNEL);
+ s->sg_dma = kzalloc(sizeof(struct ivtv_sg_element),
+ GFP_KERNEL|__GFP_NOWARN);
if (s->sg_dma == NULL) {
IVTV_ERR("Could not allocate sg_dma for %s stream\n", s->name);
kfree(s->sg_pending);
@@ -235,11 +236,12 @@ int ivtv_stream_alloc(struct ivtv_stream *s)
/* allocate stream buffers. Initially all buffers are in q_free. */
for (i = 0; i < s->buffers; i++) {
- struct ivtv_buffer *buf = kzalloc(sizeof(struct ivtv_buffer), GFP_KERNEL);
+ struct ivtv_buffer *buf = kzalloc(sizeof(struct ivtv_buffer),
+ GFP_KERNEL|__GFP_NOWARN);
if (buf == NULL)
break;
- buf->buf = kmalloc(s->buf_size + 256, GFP_KERNEL);
+ buf->buf = kmalloc(s->buf_size + 256, GFP_KERNEL|__GFP_NOWARN);
if (buf->buf == NULL) {
kfree(buf);
break;
diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c
index 4ab8d36..c47c2b9 100644
--- a/drivers/media/video/ivtv/ivtv-streams.c
+++ b/drivers/media/video/ivtv/ivtv-streams.c
@@ -244,7 +244,7 @@ int ivtv_streams_setup(struct ivtv *itv)
return 0;
/* One or more streams could not be initialized. Clean 'em all up. */
- ivtv_streams_cleanup(itv);
+ ivtv_streams_cleanup(itv, 0);
return -ENOMEM;
}
@@ -304,12 +304,12 @@ int ivtv_streams_register(struct ivtv *itv)
return 0;
/* One or more streams could not be initialized. Clean 'em all up. */
- ivtv_streams_cleanup(itv);
+ ivtv_streams_cleanup(itv, 1);
return -ENOMEM;
}
/* Unregister v4l2 devices */
-void ivtv_streams_cleanup(struct ivtv *itv)
+void ivtv_streams_cleanup(struct ivtv *itv, int unregister)
{
int type;
@@ -322,8 +322,11 @@ void ivtv_streams_cleanup(struct ivtv *itv)
continue;
ivtv_stream_free(&itv->streams[type]);
- /* Unregister device */
- video_unregister_device(vdev);
+ /* Unregister or release device */
+ if (unregister)
+ video_unregister_device(vdev);
+ else
+ video_device_release(vdev);
}
}
diff --git a/drivers/media/video/ivtv/ivtv-streams.h b/drivers/media/video/ivtv/ivtv-streams.h
index 3d76a41..a653a513 100644
--- a/drivers/media/video/ivtv/ivtv-streams.h
+++ b/drivers/media/video/ivtv/ivtv-streams.h
@@ -23,7 +23,7 @@
int ivtv_streams_setup(struct ivtv *itv);
int ivtv_streams_register(struct ivtv *itv);
-void ivtv_streams_cleanup(struct ivtv *itv);
+void ivtv_streams_cleanup(struct ivtv *itv, int unregister);
/* Capture related */
int ivtv_start_v4l2_encode_stream(struct ivtv_stream *s);
diff --git a/drivers/media/video/ivtv/ivtv-yuv.c b/drivers/media/video/ivtv/ivtv-yuv.c
index 62f70bd..a9417f6 100644
--- a/drivers/media/video/ivtv/ivtv-yuv.c
+++ b/drivers/media/video/ivtv/ivtv-yuv.c
@@ -908,7 +908,7 @@ static void ivtv_yuv_init(struct ivtv *itv)
}
/* We need a buffer for blanking when Y plane is offset - non-fatal if we can't get one */
- yi->blanking_ptr = kzalloc(720 * 16, GFP_KERNEL);
+ yi->blanking_ptr = kzalloc(720 * 16, GFP_KERNEL|__GFP_NOWARN);
if (yi->blanking_ptr) {
yi->blanking_dmaptr = pci_map_single(itv->dev, yi->blanking_ptr, 720*16, PCI_DMA_TODEVICE);
} else {
diff --git a/drivers/media/video/ivtv/ivtvfb.c b/drivers/media/video/ivtv/ivtvfb.c
index df789f6..73be154 100644
--- a/drivers/media/video/ivtv/ivtvfb.c
+++ b/drivers/media/video/ivtv/ivtvfb.c
@@ -948,7 +948,8 @@ static int ivtvfb_init_vidmode(struct ivtv *itv)
}
/* Allocate the pseudo palette */
- oi->ivtvfb_info.pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
+ oi->ivtvfb_info.pseudo_palette =
+ kmalloc(sizeof(u32) * 16, GFP_KERNEL|__GFP_NOWARN);
if (!oi->ivtvfb_info.pseudo_palette) {
IVTVFB_ERR("abort, unable to alloc pseudo pallete\n");
@@ -1056,7 +1057,8 @@ static int ivtvfb_init_card(struct ivtv *itv)
return -EBUSY;
}
- itv->osd_info = kzalloc(sizeof(struct osd_info), GFP_ATOMIC);
+ itv->osd_info = kzalloc(sizeof(struct osd_info),
+ GFP_ATOMIC|__GFP_NOWARN);
if (itv->osd_info == NULL) {
IVTVFB_ERR("Failed to allocate memory for osd_info\n");
return -ENOMEM;
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