42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
From 25b2b22d5457b21ccd764c4e5af6ce37ba25b975 Mon Sep 17 00:00:00 2001
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From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
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Date: Thu, 1 Mar 2018 23:34:53 +0100
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Subject: [PATCH] ieee1275: Fix crash in of_path_of_nvme when of_path is empty
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The of_path_of_nvme function (commit 2391d57, ieee1275: add nvme
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support within ofpath) introduced a functional regression:
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On systems which are not based on Open Firmware but have at
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least one NVME device, find_obppath will return NULL and thus
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trying to append the disk name to of_path will result in a
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crash.
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The proper behavior of of_path_of_nvme is, however, to just
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return NULL in such cases, like other users of find_obppath,
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such as of_path_of_scsi.
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Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
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Reviewed-by: Eric Snowberg <eric.snowberg@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/osdep/linux/ofpath.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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diff --git a/grub-core/osdep/linux/ofpath.c b/grub-core/osdep/linux/ofpath.c
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index 1c30e723305..61806212e83 100644
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--- a/grub-core/osdep/linux/ofpath.c
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+++ b/grub-core/osdep/linux/ofpath.c
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@@ -389,8 +389,11 @@ of_path_of_nvme(const char *sys_devname __attribute__((unused)),
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}
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of_path = find_obppath (sysfs_path);
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+
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+ if (of_path)
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+ strcat (of_path, disk);
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+
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free (sysfs_path);
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- strcat (of_path, disk);
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return of_path;
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}
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