5.15-stable review patch. If anyone has any objections, please let me know.
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From: Claus Hansen Ries chr@terma.com
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 --- drivers/net/ethernet/xilinx/ll_temac_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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_d }
/* 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;