From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Sun, 2 Mar 2025 21:02:21 +0000 (+0300)
Subject: kern/partition: Unbreak support for nested partitions
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ee27f07a650d13f66ba7b867de3b39ddeb3631ec;p=thirdparty%2Fgrub.git

kern/partition: Unbreak support for nested partitions

When using syntax "hd0,gtp3,dfly1" then ptr points to trailing part, ",dfly1".
So, it's improper to consider it as an invalid partition.

Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---

diff --git a/grub-core/kern/partition.c b/grub-core/kern/partition.c
index c6a578cf4..3b128e6d2 100644
--- a/grub-core/kern/partition.c
+++ b/grub-core/kern/partition.c
@@ -134,7 +134,7 @@ grub_partition_probe (struct grub_disk *disk, const char *str)
       partname_end = ptr;
 
       num = grub_strtoul (ptr, &ptr, 0);
-      if (*ptr != '\0' || num == 0 || num > GRUB_INT_MAX)
+      if (num == 0 || num > GRUB_INT_MAX)
 	{
 	  grub_error (GRUB_ERR_BAD_NUMBER, N_("invalid partition number"));
 	  return 0;