Commit 29160019 authored Jun 17, 2011 by Pavel Shved Committed by Paul Mundt Jun 24, 2011

hecubafb: add module_put on error path in hecubafb_probe()



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>

parent 9845afc8

drivers/video/hecubafb.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}