net: ll_temac: platform_get_resource replaced by wrong function

commit 3a38a829c8bc27d78552c28e582eb1d885d07d11 upstream.

The function platform_get_resource was replaced with
devm_platform_ioremap_resource_byname and is called using 0 as name.

This eventually ends up in platform_get_resource_byname in the call
stack, where it causes a null pointer in strcmp.

	if (type == resource_type(r) && !strcmp(r->name, name))

It should have been replaced with devm_platform_ioremap_resource.

Fixes: bd69058f50d5 ("net: ll_temac: Use devm_platform_ioremap_resource_byname()")
Signed-off-by: Claus Hansen Ries <chr@terma.com>
Cc: stable@vger.kernel.org
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/cca18f9c630a41c18487729770b492bb@terma.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index b4db50c9e7038ec63838fdd943c45601cac35e54..4e45153959c791f1d0e886f23bfc0c71a875063e 100644 (file)
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -1433,7 +1433,7 @@ static int temac_probe(struct platform_device *pdev)
        }
 
        /* map device registers */
-       lp->regs = devm_platform_ioremap_resource_byname(pdev, 0);
+       lp->regs = devm_platform_ioremap_resource(pdev, 0);
        if (IS_ERR(lp->regs)) {
                dev_err(&pdev->dev, "could not map TEMAC registers\n");
                return -ENOMEM;