[PATCH AUTOSEL 5.15 21/26] platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters
From: Sasha Levin <sashal@kernel.org>
Date: 2021-12-27 19:05:11
Also in:
platform-driver-x86, stable
Subsystem:
mellanox hardware platform support, the rest · Maintainers:
Hans de Goede, Ilpo Järvinen, Vadim Pasternak, Linus Torvalds
From: Miaoqian Lin <redacted> [ Upstream commit 804034c4ffc502795cea9b3867acb2ec7fad99ba ] The devm_ioremap() function returns NULL on error, it doesn't return error pointers. Also according to doc of device_property_read_u64_array, values in info array are properties of device or NULL. Signed-off-by: Miaoqian Lin <redacted> Link: https://lore.kernel.org/r/20211210070753.10761-1-linmq006@gmail.com (local) Reviewed-by: Hans de Goede <redacted> Signed-off-by: Hans de Goede <redacted> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/platform/mellanox/mlxbf-pmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/mellanox/mlxbf-pmc.c b/drivers/platform/mellanox/mlxbf-pmc.c
index 04bc3b50aa7a4..65b4a819f1bdf 100644
--- a/drivers/platform/mellanox/mlxbf-pmc.c
+++ b/drivers/platform/mellanox/mlxbf-pmc.c@@ -1374,8 +1374,8 @@ static int mlxbf_pmc_map_counters(struct device *dev) pmc->block[i].counters = info[2]; pmc->block[i].type = info[3]; - if (IS_ERR(pmc->block[i].mmio_base)) - return PTR_ERR(pmc->block[i].mmio_base); + if (!pmc->block[i].mmio_base) + return -ENOMEM; ret = mlxbf_pmc_create_groups(dev, i); if (ret)
--
2.34.1