Use of malloc of do_fat_write() causes cache error on ARM v7 platforms. Perhaps, the same problem will occur at any other CPUs. This replaces malloc with memalign to fix cache buffer alignment.
Signed-off-by: Nobuhiro Iwamatsu nobuhiro.iwamatsu.yj@renesas.com Signed-off-by: Yoshiyuki Ito yoshiyuki.ito.ub@renesas.com Tested-by: Hector Palacios hector.palacios@digi.com --- v2: Fix commit message.
fs/fat/fat_write.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index 9f5e911..cef138e 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -952,7 +952,7 @@ static int do_fat_write(const char *filename, void *buffer, }
mydata->fatbufnum = -1; - mydata->fatbuf = malloc(FATBUFSIZE); + mydata->fatbuf = memalign(ARCH_DMA_MINALIGN, FATBUFSIZE); if (mydata->fatbuf == NULL) { debug("Error: allocating memory\n"); return -1;