This code is for the sparc architecture and the iounmap doesn't check for NULL directly as in the x86 version. I think it is safer not to pass NULL to the sparc version. Thanks, Emil On Sun, 2012-06-24 at 01:33 +0300, Dan Carpenter wrote: > On Fri, Jun 22, 2012 at 06:11:19PM +0200, Emil Goode wrote: > > This patch fixes two problems with the error handling in the > > grvga_probe function. > > > > - If the call to grvga_parse_custom on line 370 fails we use > > the wrong label so that release_mem_region will be called > > without a call to request_mem_region being made. > > > > - If the call to ioremap on line 436 fails we should not try > > to call iounmap. I added an if statement to check whether or > > not a call to iounmap should be made. > > > > Doesn't iounmap() have a check for NULL? On x86 it does. > > if ((void __force *)addr <= high_memory) > return; > > regards, > dan carpenter > > -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html