Blame SOURCES/0353-zfsinfo-Correct-a-check-for-error-allocating-memory.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Darren Kenny <darren.kenny@oracle.com>
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Date: Thu, 26 Nov 2020 10:56:45 +0000
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Subject: [PATCH] zfsinfo: Correct a check for error allocating memory
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While arguably the check for grub_errno is correct, we should really be
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checking the return value from the function since it is always possible
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that grub_errno was set elsewhere, making this code behave incorrectly.
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Fixes: CID 73668
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Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/fs/zfs/zfsinfo.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/grub-core/fs/zfs/zfsinfo.c b/grub-core/fs/zfs/zfsinfo.c
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index c8a28acf52b..bf2918018e7 100644
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--- a/grub-core/fs/zfs/zfsinfo.c
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+++ b/grub-core/fs/zfs/zfsinfo.c
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@@ -358,8 +358,8 @@ grub_cmd_zfs_bootfs (grub_command_t cmd __attribute__ ((unused)), int argc,
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return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
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devname = grub_file_get_device_name (args[0]);
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- if (grub_errno)
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- return grub_errno;
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+ if (devname == NULL)
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+ return GRUB_ERR_OUT_OF_MEMORY;
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dev = grub_device_open (devname);
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grub_free (devname);
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