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authorPeter Maydell <peter.maydell@linaro.org>2014-06-23 12:55:22 +0100
committerPeter Maydell <peter.maydell@linaro.org>2014-06-23 12:55:22 +0100
commitd9c1647d896d3192cba9dbf98fb7efab876edde5 (patch)
treea18d31b5578e0267be6ed052c6ab5096f1d127d0 /hw
parent910f66fcda2d410249697d959dcbdf8c82d77844 (diff)
parent2bd3bce8efebe86b031beab5c0e3b9bbaec0b502 (diff)
downloadhqemu-d9c1647d896d3192cba9dbf98fb7efab876edde5.zip
hqemu-d9c1647d896d3192cba9dbf98fb7efab876edde5.tar.gz
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Block pull request # gpg: Signature made Mon 23 Jun 2014 09:53:49 BST using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/block-pull-request: block: asynchronously stop the VM on I/O errors vl: allow other threads to do qemu_system_vmstop_request sheepdog: fix NULL dereference in sd_create QemuOpts: check NULL opts in qemu_opt_get functions block: m25p80: Support read only bdrvs. block: m25p80: sync_page(): Deindent function body. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
-rw-r--r--hw/block/m25p80.c30
1 files changed, 14 insertions, 16 deletions
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 4076114..5893773 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -288,18 +288,20 @@ static void bdrv_sync_complete(void *opaque, int ret)
static void flash_sync_page(Flash *s, int page)
{
- if (s->bdrv) {
- int bdrv_sector, nb_sectors;
- QEMUIOVector iov;
-
- bdrv_sector = (page * s->pi->page_size) / BDRV_SECTOR_SIZE;
- nb_sectors = DIV_ROUND_UP(s->pi->page_size, BDRV_SECTOR_SIZE);
- qemu_iovec_init(&iov, 1);
- qemu_iovec_add(&iov, s->storage + bdrv_sector * BDRV_SECTOR_SIZE,
- nb_sectors * BDRV_SECTOR_SIZE);
- bdrv_aio_writev(s->bdrv, bdrv_sector, &iov, nb_sectors,
- bdrv_sync_complete, NULL);
+ int bdrv_sector, nb_sectors;
+ QEMUIOVector iov;
+
+ if (!s->bdrv || bdrv_is_read_only(s->bdrv)) {
+ return;
}
+
+ bdrv_sector = (page * s->pi->page_size) / BDRV_SECTOR_SIZE;
+ nb_sectors = DIV_ROUND_UP(s->pi->page_size, BDRV_SECTOR_SIZE);
+ qemu_iovec_init(&iov, 1);
+ qemu_iovec_add(&iov, s->storage + bdrv_sector * BDRV_SECTOR_SIZE,
+ nb_sectors * BDRV_SECTOR_SIZE);
+ bdrv_aio_writev(s->bdrv, bdrv_sector, &iov, nb_sectors, bdrv_sync_complete,
+ NULL);
}
static inline void flash_sync_area(Flash *s, int64_t off, int64_t len)
@@ -307,7 +309,7 @@ static inline void flash_sync_area(Flash *s, int64_t off, int64_t len)
int64_t start, end, nb_sectors;
QEMUIOVector iov;
- if (!s->bdrv) {
+ if (!s->bdrv || bdrv_is_read_only(s->bdrv)) {
return;
}
@@ -625,10 +627,6 @@ static int m25p80_init(SSISlave *ss)
if (dinfo && dinfo->bdrv) {
DB_PRINT_L(0, "Binding to IF_MTD drive\n");
s->bdrv = dinfo->bdrv;
- if (bdrv_is_read_only(s->bdrv)) {
- fprintf(stderr, "Can't use a read-only drive");
- return 1;
- }
/* FIXME: Move to late init */
if (bdrv_read(s->bdrv, 0, s->storage, DIV_ROUND_UP(s->size,
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