* [PATCH] mtd: maps: fix error return code of physmap_flash_remove()
@ 2021-03-08 3:44 Jia-Ju Bai
2021-03-11 11:39 ` Miquel Raynal
0 siblings, 1 reply; 2+ messages in thread
From: Jia-Ju Bai @ 2021-03-08 3:44 UTC (permalink / raw)
To: miquel.raynal, richard, vigneshr, chris.packham, Sergey.Semin
Cc: linux-mtd, linux-kernel, Jia-Ju Bai
When platform_get_drvdata() returns NULL to info, no error return code
of physmap_flash_remove() is assigned.
To fix this bug, err is assigned with -EINVAL in this case
Fixes: 73566edf9b91 ("[MTD] Convert physmap to platform driver")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
---
drivers/mtd/maps/physmap-core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/maps/physmap-core.c b/drivers/mtd/maps/physmap-core.c
index 001ed5deb622..4f63b8430c71 100644
--- a/drivers/mtd/maps/physmap-core.c
+++ b/drivers/mtd/maps/physmap-core.c
@@ -69,8 +69,10 @@ static int physmap_flash_remove(struct platform_device *dev)
int i, err = 0;
info = platform_get_drvdata(dev);
- if (!info)
+ if (!info) {
+ err = -EINVAL;
goto out;
+ }
if (info->cmtd) {
err = mtd_device_unregister(info->cmtd);
--
2.17.1
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] mtd: maps: fix error return code of physmap_flash_remove()
2021-03-08 3:44 [PATCH] mtd: maps: fix error return code of physmap_flash_remove() Jia-Ju Bai
@ 2021-03-11 11:39 ` Miquel Raynal
0 siblings, 0 replies; 2+ messages in thread
From: Miquel Raynal @ 2021-03-11 11:39 UTC (permalink / raw)
To: Jia-Ju Bai, miquel.raynal, richard, vigneshr, chris.packham,
Sergey.Semin
Cc: linux-mtd, linux-kernel
On Mon, 2021-03-08 at 03:44:46 UTC, Jia-Ju Bai wrote:
> When platform_get_drvdata() returns NULL to info, no error return code
> of physmap_flash_remove() is assigned.
> To fix this bug, err is assigned with -EINVAL in this case
>
> Fixes: 73566edf9b91 ("[MTD] Convert physmap to platform driver")
> Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.
Miquel
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-03-08 3:44 [PATCH] mtd: maps: fix error return code of physmap_flash_remove() Jia-Ju Bai
2021-03-11 11:39 ` Miquel Raynal
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