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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-31 20:15:25 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-31 20:15:25 +0200
commit41fa9f863baacd32dd049daf8050d55a0c9e6f1a (patch)
tree44cc612753746cd459e122f102c72f33b36aa6b7 /drivers/ide/ide-floppy.c
parentb5479167f4206e0d821a51ae149d921cd7a58e54 (diff)
downloadop-kernel-dev-41fa9f863baacd32dd049daf8050d55a0c9e6f1a.zip
op-kernel-dev-41fa9f863baacd32dd049daf8050d55a0c9e6f1a.tar.gz
ide: decrease size of ->pc_buf field in struct ide_atapi_pc
struct ide_atapi_pc is often allocated on the stack and size of ->pc_buf size is 256 bytes. However since only ide_floppy_create_read_capacity_cmd() and idetape_create_inquiry_cmd() require such size allocate buffers for these pc-s explicitely and decrease ->pc_buf size to 64 bytes. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-floppy.c')
-rw-r--r--drivers/ide/ide-floppy.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 7ae6623..0faae30 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -385,7 +385,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
struct gendisk *disk = floppy->disk;
struct ide_atapi_pc pc;
u8 *cap_desc;
- u8 header_len, desc_cnt;
+ u8 pc_buf[256], header_len, desc_cnt;
int i, rc = 1, blocks, length;
drive->bios_cyl = 0;
@@ -395,6 +395,9 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
drive->capacity64 = 0;
ide_floppy_create_read_capacity_cmd(&pc);
+ pc.buf = &pc_buf[0];
+ pc.buf_size = sizeof(pc_buf);
+
if (ide_queue_pc_tail(drive, disk, &pc)) {
printk(KERN_ERR PFX "Can't get floppy parameters\n");
return 1;
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