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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-04-07 19:07:20 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-04-07 19:07:20 +0300 |
| commit | 82331a70cc3c2901c4ae36ff88d5a28f6d14df32 (patch) | |
| tree | dacab9ed9c5b1828128510e5708d65e8a7f5acb6 | |
| parent | eccc58cb10fe09c32febc867d926159fa043cfbb (diff) | |
| parent | d9b8a67b3b95a5c5aae6422b8113adc1c2485f2b (diff) | |
| download | linux-82331a70cc3c2901c4ae36ff88d5a28f6d14df32.tar.xz | |
Merge tag 'mtd/fixes-for-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD fix from Richard Weinberger:
"A single fix for a possible infinite loop in the cfi_cmdset_0002
driver"
* tag 'mtd/fixes-for-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0002.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 72428b6bfc47..7b7286b4d81e 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -1876,7 +1876,11 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, continue; } - if (time_after(jiffies, timeo) && !chip_ready(map, adr)) + /* + * We check "time_after" and "!chip_good" before checking "chip_good" to avoid + * the failure due to scheduling. + */ + if (time_after(jiffies, timeo) && !chip_good(map, adr, datum)) break; if (chip_good(map, adr, datum)) { |