6.4-stable review patch. If anyone has any objections, please let me know.
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From: Wang Ming machel@vivo.com
commit dd218433f2b635d97e8fda3eed047151fd528ce4 upstream.
The devm_memremap() function returns error pointers. It never returns NULL. Fix the check.
Fixes: 7ca5ce896524 ("firmware: add Intel Stratix10 service layer driver") Cc: stable@vger.kernel.org Signed-off-by: Wang Ming machel@vivo.com Signed-off-by: Dinh Nguyen dinguyen@kernel.org Link: https://lore.kernel.org/r/20230727193750.983795-1-dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/firmware/stratix10-svc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -756,7 +756,7 @@ svc_create_memory_pool(struct platform_d paddr = begin; size = end - begin; va = devm_memremap(dev, paddr, size, MEMREMAP_WC); - if (!va) { + if (IS_ERR(va)) { dev_err(dev, "fail to remap shared memory\n"); return ERR_PTR(-EINVAL); }