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| author | QintaoShen <unSimple1993@163.com> | 2022-03-24 16:35:40 +0800 |
|---|---|---|
| committer | Florian Fainelli <f.fainelli@gmail.com> | 2022-04-26 09:12:35 -0700 |
| commit | b4bd2aafacce48db26b0a213d849818d940556dd (patch) | |
| tree | 8a25e0ae1ff62fd6a7940d5b5b56a83bbbc94a7e /drivers/soc/bcm | |
| parent | 3123109284176b1532874591f7c81f3837bbdc17 (diff) | |
| download | linux-b4bd2aafacce48db26b0a213d849818d940556dd.tar.gz linux-b4bd2aafacce48db26b0a213d849818d940556dd.tar.bz2 linux-b4bd2aafacce48db26b0a213d849818d940556dd.zip | |
soc: bcm: Check for NULL return of devm_kzalloc()
As the potential failure of allocation, devm_kzalloc() may return NULL. Then
the 'pd->pmb' and the follow lines of code may bring null pointer dereference.
Therefore, it is better to check the return value of devm_kzalloc() to avoid
this confusion.
Fixes: 8bcac4011ebe ("soc: bcm: add PM driver for Broadcom's PMB")
Signed-off-by: QintaoShen <unSimple1993@163.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'drivers/soc/bcm')
| -rw-r--r-- | drivers/soc/bcm/bcm63xx/bcm-pmb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/soc/bcm/bcm63xx/bcm-pmb.c b/drivers/soc/bcm/bcm63xx/bcm-pmb.c index 7bbe46ea5f94..9407cac47fdb 100644 --- a/drivers/soc/bcm/bcm63xx/bcm-pmb.c +++ b/drivers/soc/bcm/bcm63xx/bcm-pmb.c @@ -312,6 +312,9 @@ static int bcm_pmb_probe(struct platform_device *pdev) for (e = table; e->name; e++) { struct bcm_pmb_pm_domain *pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL); + if (!pd) + return -ENOMEM; + pd->pmb = pmb; pd->data = e; pd->genpd.name = e->name; |