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uio: uio_fsl_elbc_gpcm:: Add null pointer check to uio_fsl_elbc_gpcm_probe 

devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.

Fixes: d57801c45f ("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>
pull/1354/merge
Li Qiang 2025-10-15 14:40:20 +08:00 committed by Greg Kroah-Hartman
parent 18e4a02963
commit d48fb15e6a
1 changed files with 7 additions and 0 deletions
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7
drivers/uio/uio_fsl_elbc_gpcm.c
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@ -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;
}