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SubjectRe: [Intel-gfx] [PATCH 18/33] fbdev: make unregister/unlink functions not fail
Hi Daniel,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.2-rc1 next-20190520]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Daniel-Vetter/fbcon-notifier-begone/20190521-021841
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/staging/fbtft/fbtft-core.c:894:38: sparse: sparse: incorrect type in return expression (different base types) @@ expected int @@ got vint @@
>> drivers/staging/fbtft/fbtft-core.c:894:38: sparse: expected int
>> drivers/staging/fbtft/fbtft-core.c:894:38: sparse: got void
--
>> drivers/media/pci/ivtv/ivtvfb.c:1261:43: sparse: sparse: incorrect type in conditional (non-scalar type)
>> drivers/media/pci/ivtv/ivtvfb.c:1261:43: sparse: got void
--
>> drivers/video/fbdev/neofb.c:2130:43: sparse: sparse: incorrect type in conditional (non-scalar type)
>> drivers/video/fbdev/neofb.c:2130:43: sparse: got void
--
>> drivers/video/fbdev/savage/savagefb_driver.c:2341:43: sparse: sparse: incorrect type in conditional (non-scalar type)
>> drivers/video/fbdev/savage/savagefb_driver.c:2341:43: sparse: got void

vim +894 drivers/staging/fbtft/fbtft-core.c

c296d5f9 Thomas Petazzoni 2014-12-31 877
c296d5f9 Thomas Petazzoni 2014-12-31 878 /**
c296d5f9 Thomas Petazzoni 2014-12-31 879 * fbtft_unregister_framebuffer - releases a tft frame buffer device
c296d5f9 Thomas Petazzoni 2014-12-31 880 * @fb_info: frame buffer info structure
c296d5f9 Thomas Petazzoni 2014-12-31 881 *
c296d5f9 Thomas Petazzoni 2014-12-31 882 * Frees SPI driverdata if needed
c296d5f9 Thomas Petazzoni 2014-12-31 883 * Frees gpios.
c296d5f9 Thomas Petazzoni 2014-12-31 884 * Unregisters frame buffer device.
c296d5f9 Thomas Petazzoni 2014-12-31 885 *
c296d5f9 Thomas Petazzoni 2014-12-31 886 */
c296d5f9 Thomas Petazzoni 2014-12-31 887 int fbtft_unregister_framebuffer(struct fb_info *fb_info)
c296d5f9 Thomas Petazzoni 2014-12-31 888 {
c296d5f9 Thomas Petazzoni 2014-12-31 889 struct fbtft_par *par = fb_info->par;
c296d5f9 Thomas Petazzoni 2014-12-31 890
c296d5f9 Thomas Petazzoni 2014-12-31 891 if (par->fbtftops.unregister_backlight)
c296d5f9 Thomas Petazzoni 2014-12-31 892 par->fbtftops.unregister_backlight(par);
c296d5f9 Thomas Petazzoni 2014-12-31 893 fbtft_sysfs_exit(par);
11107ffe Aya Mahfouz 2015-02-27 @894 return unregister_framebuffer(fb_info);
c296d5f9 Thomas Petazzoni 2014-12-31 895 }
c296d5f9 Thomas Petazzoni 2014-12-31 896 EXPORT_SYMBOL(fbtft_unregister_framebuffer);
c296d5f9 Thomas Petazzoni 2014-12-31 897

:::::: The code at line 894 was first introduced by commit
:::::: 11107ffe2cd1c1dc5948713fc08a1372185be0d5 staging: fbtft: remove unused variable

:::::: TO: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation

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