[U-Boot] Issue in drivers/mmc/mmc.c

3 Jan 2010

There appears to be a path through mmc_read in drivers/mmc/mmc.c where
malloc'd memory is not freed before exiting mmc_read, although this may
be a hypothetical situation. It occurs if mmc_set_blocklen() returns a
non-zero value.
The following patch appears to resolve the issue:

--- o/drivers/mmc/mmc.c	2010-01-03 00:44:41.000000000 +0000
+++ drivers/mmc/mmc.c	2010-01-03 00:46:14.000000000 +0000
@@ -172,7 +172,7 @@ int mmc_read(struct mmc *mmc, u64 src, u
    err = mmc_set_blocklen(mmc, mmc->read_bl_len);
if (err)
-		return err;
+		goto free_buffer;
for (i = startblock; i <= endblock; i++) {
    	int segment_size;
Regards,
Quentin Armitage

    