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| author | Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> | 2008-07-22 09:39:01 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-07-25 09:53:26 -0400 |
| commit | 4b5e33a7bf185c8d8568a807d9805fb155bcedd9 (patch) | |
| tree | 6e8658fe6708ea36260f8e813cbdc88500c4ca10 /drivers/mtd/maps/physmap.c | |
| parent | 7b2491911540e4904498622fbee2e1a9e3120d2f (diff) | |
| download | kernel_samsung_smdk4412-4b5e33a7bf185c8d8568a807d9805fb155bcedd9.zip kernel_samsung_smdk4412-4b5e33a7bf185c8d8568a807d9805fb155bcedd9.tar.gz kernel_samsung_smdk4412-4b5e33a7bf185c8d8568a807d9805fb155bcedd9.tar.bz2 | |
[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/maps/physmap.c')
| -rw-r--r-- | drivers/mtd/maps/physmap.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 7c8cdf4..42d844f 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; } |