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| author | Li Qiang <liqiang01@kylinos.cn> | 2025-10-15 14:40:20 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-18 13:54:46 +0100 |
| commit | fa963643a890694ae51d46e539bdeb3e40baf1da (patch) | |
| tree | ab346978d4ee8975cd3a25f23bf997c1c29be19b /drivers/uio | |
| parent | f93f66ffcb0d50908de2bb1ebefd5c33c53f56a1 (diff) | |
| download | linux-fa963643a890694ae51d46e539bdeb3e40baf1da.tar.gz linux-fa963643a890694ae51d46e539bdeb3e40baf1da.tar.bz2 linux-fa963643a890694ae51d46e539bdeb3e40baf1da.zip | |
uio: uio_fsl_elbc_gpcm:: Add null pointer check to uio_fsl_elbc_gpcm_probe
[ Upstream commit d48fb15e6ad142e0577428a8c5028136e10c7b3d ]
devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.
Fixes: d57801c45f53e ("uio: uio_fsl_elbc_gpcm: use device-managed allocators")
Signed-off-by: Li Qiang <liqiang01@kylinos.cn>
Link: https://patch.msgid.link/20251015064020.56589-1-liqiang01@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_fsl_elbc_gpcm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/uio/uio_fsl_elbc_gpcm.c b/drivers/uio/uio_fsl_elbc_gpcm.c index 496caff66e7e..dcf08042e894 100644 --- a/drivers/uio/uio_fsl_elbc_gpcm.c +++ b/drivers/uio/uio_fsl_elbc_gpcm.c @@ -384,6 +384,11 @@ static int uio_fsl_elbc_gpcm_probe(struct platform_device *pdev) /* set all UIO data */ info->mem[0].name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOFn", node); + if (!info->mem[0].name) { + ret = -ENODEV; + goto out_err3; + } + info->mem[0].addr = res.start; info->mem[0].size = resource_size(&res); info->mem[0].memtype = UIO_MEM_PHYS; @@ -423,6 +428,8 @@ static int uio_fsl_elbc_gpcm_probe(struct platform_device *pdev) out_err2: if (priv->shutdown) priv->shutdown(info, true); + +out_err3: iounmap(info->mem[0].internal_addr); return ret; } |