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authorUwe Kleine-König <Uwe.Kleine-Koenig@digi.com>2008-07-22 09:39:01 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-07-25 09:53:26 -0400
commit4b5e33a7bf185c8d8568a807d9805fb155bcedd9 (patch)
tree6e8658fe6708ea36260f8e813cbdc88500c4ca10 /drivers/mtd
parent7b2491911540e4904498622fbee2e1a9e3120d2f (diff)
downloadblackbird-op-linux-4b5e33a7bf185c8d8568a807d9805fb155bcedd9.tar.gz
blackbird-op-linux-4b5e33a7bf185c8d8568a807d9805fb155bcedd9.zip
[MTD] physmap: resume already suspended chips on failure to suspend
A nice side effect of this patch is that the return value of physmap_flash_suspend in the error path is the value of the first failing suspend callback and not the bitwise OR of all of them. Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/maps/physmap.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 7c8cdf49deb6..42d844f8f6bf 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -201,8 +201,19 @@ static int physmap_flash_suspend(struct platform_device *dev, pm_message_t state
int i;
for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++)
- if (info->mtd[i]->suspend)
- ret |= info->mtd[i]->suspend(info->mtd[i]);
+ if (info->mtd[i]->suspend) {
+ ret = info->mtd[i]->suspend(info->mtd[i]);
+ if (ret)
+ goto fail;
+ }
+
+ return 0;
+fail:
+ for (--i; i >= 0; --i)
+ if (info->mtd[i]->suspend) {
+ BUG_ON(!info->mtd[i]->resume);
+ info->mtd[i]->resume(info->mtd[i]);
+ }
return ret;
}
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