[PATCH 6.9 095/374] spmi: pmic-arb: Replace three IS_ERR() calls by null pointer checks in spmi_pmic_arb_probe()

Greg Kroah-Hartman
2024-06-06T14:09:09Z

From: Markus Elfring <elfring@users.sourceforge.net>

[ Upstream commit c86f90e30a347ef0a28d0df3975c46389d0cc7fc ]

The devm_ioremap() function does not return error pointers.
It returns NULL on error.
This issue was detected once more also by using the Coccinelle software.

Update three checks (and corresponding error codes) for failed
function calls accordingly.

Fixes: ffdfbafdc4f4 ("spmi: Use devm_spmi_controller_alloc()")
Fixes: 231601cd22bd ("spmi: pmic-arb: Add support for PMIC v7")
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://lore.kernel.org/r/82a0768e-95b0-4091-bdd1-14c3e893726b@web.de
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240507210809.3479953-6-sboyd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spmi/spmi-pmic-arb.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index 9ed1180fe31f1..937c15324513f 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -1462,8 +1462,8 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
*/
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
core = devm_ioremap(&ctrl->dev, res->start, resource_size(res));
- if (IS_ERR(core))
- return PTR_ERR(core);
+ if (!core)
+ return -ENOMEM;

pmic_arb->core_size = resource_size(res);

@@ -1495,15 +1495,15 @@ static int spmi_pmic_arb_probe(struct platform_device *pdev)
"obsrvr");
pmic_arb->rd_base = devm_ioremap(&ctrl->dev, res->start,
resource_size(res));
- if (IS_ERR(pmic_arb->rd_base))
- return PTR_ERR(pmic_arb->rd_base);
+ if (!pmic_arb->rd_base)
+ return -ENOMEM;

res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"chnls");
pmic_arb->wr_base = devm_ioremap(&ctrl->dev, res->start,
resource_size(res));
- if (IS_ERR(pmic_arb->wr_base))
- return PTR_ERR(pmic_arb->wr_base);
+ if (!pmic_arb->wr_base)
+ return -ENOMEM;
}

pmic_arb->max_periphs = PMIC_ARB_MAX_PERIPHS;
--
2.43.0