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authorWang Yufen <wangyufen@huawei.com>2022-12-02 16:22:54 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-12-31 13:31:54 +0100
commit65f1ff9011f1d533d0a23c3294d82e0146f2648b (patch)
tree8c07cf9ac76c6e6a927d2af1a5cd8e68880d20a4 /fs/pstore/ram.c
parent5b81f0c6c60e35bf8153230ddfb03ebb14e17986 (diff)
downloadlinux-65f1ff9011f1d533d0a23c3294d82e0146f2648b.tar.gz
pstore/ram: Fix error return code in ramoops_probe()
[ Upstream commit e1fce564900f8734edf15b87f028c57e14f6e28d ]

In the if (dev_of_node(dev) && !pdata) path, the "err" may be assigned a
value of 0, so the error return code -EINVAL may be incorrectly set
to 0. To fix set valid return code before calling to goto.

Fixes: 35da60941e44 ("pstore/ram: add Device Tree bindings")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/1669969374-46582-1-git-send-email-wangyufen@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/pstore/ram.c')
-rw-r--r--fs/pstore/ram.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index fefe3d391d3a..74e4d93f3e08 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -735,6 +735,7 @@ static int ramoops_probe(struct platform_device *pdev)
 	/* Make sure we didn't get bogus platform data pointer. */
 	if (!pdata) {
 		pr_err("NULL platform data\n");
+		err = -EINVAL;
 		goto fail_out;
 	}
 
@@ -742,6 +743,7 @@ static int ramoops_probe(struct platform_device *pdev)
 			!pdata->ftrace_size && !pdata->pmsg_size)) {
 		pr_err("The memory size and the record/console size must be "
 			"non-zero\n");
+		err = -EINVAL;
 		goto fail_out;
 	}