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hecubafb: add module_put on error path in hecubafb_probe()

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In hecubafb_probe(), after a successful try_module_get, vzalloc may
fail and make the hecubafb_probe return, but the module is not put on
this error path.

This patch adds an exit point that calls module_put in such situation.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Pavel Shved <shved@ispras.ru>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Pavel Shved 2011-06-17 16:25:12 +00:00 committed by Paul Mundt
parent 9845afc8fa
commit 291600193e
1 changed files with 2 additions and 1 deletions
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3
drivers/video/hecubafb.c
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@ -233,7 +233,7 @@ static int __devinit hecubafb_probe(struct platform_device *dev)
videomemory = vzalloc(videomemorysize);
if (!videomemory)
return retval;
goto err_videomem_alloc;
info = framebuffer_alloc(sizeof(struct hecubafb_par), &dev->dev);
if (!info)
@ -275,6 +275,7 @@ static int __devinit hecubafb_probe(struct platform_device *dev)
framebuffer_release(info);
err_fballoc:
vfree(videomemory);
err_videomem_alloc:
module_put(board->owner);
return retval;
}