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

cmd: gpt: fix partition search boundaries

Browse Source 
GPT disk partition with max available number (ex: /dev/mmcblk128) can't
be used from U-Boot. Here is an example:

  => mmc part

  Partition Map for mmc device 0  --   Partition Type: EFI

  Part	Start LBA	End LBA		Name
	Attributes
	Type GUID
	Partition GUID
  1	0x00001000	0x000013ff	"env1"
	attrs:	0x0000000000000000
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
	guid:	5452574f-2211-4433-5566-778899aabb02
  2	0x00001400	0x000017ff	"env2"
	attrs:	0x0000000000000000
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
	guid:	5452574f-2211-4433-5566-778899aabb03
  .................
  8	0x00158000	0x0034bfff	"apps"
	attrs:	0x0000000000000000
	type:	0fc63daf-8483-4772-8e79-3d69d8477de4
	guid:	5452574f-2211-4433-5566-778899aabb09
  128	0x00000420	0x00000fff	"fip"
	attrs:	0x0000000000000000
	type:	c12a7328-f81f-11d2-ba4b-00a0c93ec93b
	guid:	5452574f-2211-4433-5566-778899aabb01

  => gpt setenv mmc 0 fip
  error!
  => gpt setenv mmc 0 apps
  success!

The error is caused by invalid boundary checks. This patch fixes an
issue.

Fixes: 12fc1f3bb2 ("cmd: gpt: add eMMC and GPT support")
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Acked-by: Quentin Schulz <quentin.schulz@cherry.de>
This commit is contained in:
Mikhail Kshevetskiy
2026-02-04 10:30:55 -06:00
committed by Tom Rini
parent 0ced9ef073
commit 6a1f8c8973
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmd/gpt.c
+2 -2
View File
@@ -723,7 +723,7 @@ static int gpt_enumerate(struct blk_desc *desc)
if (part_drv->test(desc))
continue;
for (i = 1; i < part_drv->max_entries; i++) {
for (i = 1; i <= part_drv->max_entries; i++) {
ret = part_driver_get_info(part_drv, desc, i, &pinfo);
if (ret)
continue;
@@ -819,7 +819,7 @@ static int gpt_setenv(struct blk_desc *desc, const char *name)
struct disk_partition pinfo;
int i;
for (i = 1; i < part_drv->max_entries; i++) {
for (i = 1; i <= part_drv->max_entries; i++) {
ret = part_driver_get_info(part_drv, desc, i, &pinfo);
if (ret)
continue;