[lkml]   [2019]   [Jul]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [patch 1/5] lib/vdso/32: Remove inconsistent NULL pointer checks
On Sun, Jul 28, 2019 at 03:12:52PM +0200, Thomas Gleixner wrote:
> The 32bit variants of vdso_clock_gettime()/getres() have a NULL pointer
> check for the timespec pointer. That's inconsistent vs. 64bit.
> But the vdso implementation will never be consistent versus the syscall
> because the only case which it can handle is NULL. Any other invalid
> pointer will cause a segfault. So special casing NULL is not really useful.
> Remove it along with the superflouos syscall fallback invocation as that


> will return -EFAULT anyway. That also gets rid of the dubious typecast
> which only works because the pointer is NULL.
> Fixes: 00b26474c2f1 ("lib/vdso: Provide generic VDSO implementation")
> Signed-off-by: Thomas Gleixner <>
> ---

 \ /
  Last update: 2019-07-29 16:53    [W:0.124 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site