This is a note to let you know that I've just added the patch titled
char: xilinx_hwicap: Fix NULL vs IS_ERR() bug
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
char-xilinx_hwicap-fix-null-vs-is_err-bug.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 63371ebf59eb509dbe51fc82d9e9d8720e404a0a
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Tue Feb 20 12:02:31 2024 +0300
char: xilinx_hwicap: Fix NULL vs IS_ERR() bug
[ Upstream commit 316459ba4051fd91237171fdca88920128a646f1 ]
The devm_platform_ioremap_resource() function returns error pointers.
It never returns NULL. Update the check accordingly.
Fixes: 672371832193 ("char: xilinx_hwicap: Modernize driver probe")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Michal Simek <michal.simek@xxxxxxx>
Link: https://lore.kernel.org/r/ef647a9c-b1b7-4338-9bc0-28165ec2a367@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index 019cf6079cecd..6d2eadefd9dc9 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -639,8 +639,8 @@ static int hwicap_setup(struct platform_device *pdev, int id,
dev_set_drvdata(dev, (void *)drvdata);
drvdata->base_address = devm_platform_ioremap_resource(pdev, 0);
- if (!drvdata->base_address) {
- retval = -ENODEV;
+ if (IS_ERR(drvdata->base_address)) {
+ retval = PTR_ERR(drvdata->base_address);
goto failed;
}
