leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fb_mmc.c: Correct blk_dread() return value checks

Browse Source 
The function blk_dread will return -ENOSYS on failure or on success the
number of blocks read, which must be the number asked to read (otherwise
it failed somewhere).  Correct this check.

Cc: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Tom Rini 2017-08-14 21:00:44 -04:00 committed by Marek Vasut
parent 2341c80cd2
commit 6bafa5a4bd
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
common/fb_mmc.c
View File

@ -132,7 +132,7 @@ static lbaint_t fb_mmc_get_boot_header(struct blk_desc *dev_desc,
/* Read the boot image header */
res = blk_dread(dev_desc, info->start, hdr_sectors, (void *)hdr);
if (res == 0) {
if (res != hdr_sectors) {
error("cannot read header from boot partition");
fastboot_fail("cannot read header from boot partition");
return 0;
@ -215,7 +215,7 @@ static int fb_mmc_update_zimage(struct blk_desc *dev_desc,
ramdisk_buffer = (u8 *)hdr + (hdr_sectors * info.blksz);
res = blk_dread(dev_desc, ramdisk_sector_start, ramdisk_sectors,
ramdisk_buffer);
if (res == 0) {
if (res != ramdisk_sectors) {
error("cannot read ramdisk from boot partition");
fastboot_fail("cannot read ramdisk from boot partition");
return -1;