From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>,
"Claude Opus 4.6" <noreply@anthropic.com>
Subject: [PATCH 04/12] pmdomain: fix dereference before NULL check in genpd_get_from_provider
Date: Mon, 16 Feb 2026 09:42:20 +0100 [thread overview]
Message-ID: <20260216084253.3547270-4-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20260216084253.3547270-1-a.fatoum@pengutronix.de>
genpd_get_from_provider() dereferences genpdspec->np in the variable
declaration before checking whether genpdspec itself is NULL.
Fixes: abf97f3993 ("pmdomain: look up pmdomain even if not have_genpd_providers")
Reported-by: GCC 14.2 -fanalyzer
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
drivers/base/power.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/base/power.c b/drivers/base/power.c
index 543c85a3d9b8..936fc65ea8f8 100644
--- a/drivers/base/power.c
+++ b/drivers/base/power.c
@@ -255,13 +255,15 @@ static struct generic_pm_domain *genpd_get_from_provider(
struct of_phandle_args *genpdspec)
{
struct generic_pm_domain *genpd = ERR_PTR(-ENOENT);
- struct device_node *node = genpdspec->np;
struct of_genpd_provider *provider;
+ struct device_node *node;
int ret;
if (!genpdspec)
return ERR_PTR(-EINVAL);
+ node = genpdspec->np;
+
ret = of_device_ensure_probed(node);
if (ret) {
struct device_node *parent;
--
2.47.3
next prev parent reply other threads:[~2026-02-16 8:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-16 8:42 [PATCH 01/12] firmware: xilinx-fpga: fix double free in probe error path Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 02/12] driver: fix missing va_end in dev_add_alias " Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 03/12] net: eth: avoid overlapping memcpy in eth_set_ethaddr Ahmad Fatoum
2026-02-16 8:42 ` Ahmad Fatoum [this message]
2026-02-16 8:42 ` [PATCH 05/12] bootm: android: fix PTR_ERR called after clearing error pointer Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 06/12] bootm: android: fix double close of fd Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 07/12] net: phy: add NULL check for phy driver in page accessors Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 08/12] open: add missing mode argument to O_CREAT calls Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 09/12] hush: add NULL check for gl_pathv after do_glob_in_argv Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 10/12] i2c: rk3x: fix NULL pointer dereference on repeated NACK Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 11/12] mci: imx-esdhc: remove misleading NULL check for cmd pointer Ahmad Fatoum
2026-02-16 8:42 ` [PATCH 12/12] mci: spi: initialize r1 to fix garbage return value Ahmad Fatoum
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