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Important FAT fix. Bad test would cause many un-necessary writes to FLASH.

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5102 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-09-06 14:46:08 +00:00
parent 3ad95c590b
commit 9224a95952
2 changed files with 5 additions and 1 deletions
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4
ChangeLog
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@ -3267,4 +3267,8 @@
* Kconfig: Verify configuration settings for the STM32. This include
changes in the way that the external SRAM is configured: Define
CONFIG_HEAP2_SIZE (decimal) instead of CONFIG_HEAP2_END (hex).
* tools/configure.sh: Don't append the apps directory path setting
if the correct setting is already in defined in the defconfig file.
* fs/fat/fs_utils.c: Improper constructed bool expression. This
would cause many unnecessary writes to FLASH (Thanks Ronen Vainish).

2
fs/fat/fs_fat32util.c
View File

@ -1563,7 +1563,7 @@ int fat_ffcacheflush(struct fat_mountpt_s *fs, struct fat_file_s *ff)
*/
if (ff->ff_cachesector &&
ff->ff_bflags && (FFBUFF_DIRTY|FFBUFF_VALID) == (FFBUFF_DIRTY|FFBUFF_VALID))
(ff->ff_bflags & (FFBUFF_DIRTY|FFBUFF_VALID)) == (FFBUFF_DIRTY|FFBUFF_VALID))
{
/* Write the dirty sector */