Use of malloc of do_fat_write() from USB media 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 --- 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;