Revision f555befd185dc097ede887eb7b308c2e1c1369d4 authored by Jan Stancek on 12 January 2021, 23:49:21 UTC, committed by Linus Torvalds on 13 January 2021, 02:12:54 UTC
After commit 236c32eb1096 ("mm: migrate: clean up migrate_prep{_local}")',
do_migrate_pages can return uninitialized variable 'err' (which is
propagated to user-space as error) when 'from' and 'to' nodesets are
identical. This can be reproduced with LTP migrate_pages01, which calls
migrate_pages() with same set for both old/new_nodes.
Add 'err' initialization back.
Link: https://lkml.kernel.org/r/456a021c7ef3636d7668cec9dcb4a446a4244812.1609855564.git.jstancek@redhat.com
Fixes: 236c32eb1096 ("mm: migrate: clean up migrate_prep{_local}")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Song Liu <songliubraving@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent c22ee52
| File | Mode | Size |
|---|---|---|
| atmel_lcdc.h | -rw-r--r-- | 6.2 KB |
| aty128.h | -rw-r--r-- | 13.3 KB |
| broadsheetfb.h | -rw-r--r-- | 2.1 KB |
| cirrus.h | -rw-r--r-- | 5.7 KB |
| cvisionppc.h | -rw-r--r-- | 1.5 KB |
| da8xx-fb.h | -rw-r--r-- | 2.0 KB |
| display_timing.h | -rw-r--r-- | 3.1 KB |
| edid.h | -rw-r--r-- | 228 bytes |
| gbe.h | -rw-r--r-- | 10.4 KB |
| hecubafb.h | -rw-r--r-- | 1.5 KB |
| ili9320.h | -rw-r--r-- | 5.7 KB |
| imx-ipu-image-convert.h | -rw-r--r-- | 6.5 KB |
| imx-ipu-v3.h | -rw-r--r-- | 16.3 KB |
| kyro.h | -rw-r--r-- | 2.4 KB |
| mach64.h | -rw-r--r-- | 46.9 KB |
| maxinefb.h | -rw-r--r-- | 1.2 KB |
| metronomefb.h | -rw-r--r-- | 1.5 KB |
| mipi_display.h | -rw-r--r-- | 5.0 KB |
| mmp_disp.h | -rw-r--r-- | 7.0 KB |
| neomagic.h | -rw-r--r-- | 4.9 KB |
| newport.h | -rw-r--r-- | 18.7 KB |
| of_display_timing.h | -rw-r--r-- | 788 bytes |
| of_videomode.h | -rw-r--r-- | 367 bytes |
| omap-panel-data.h | -rw-r--r-- | 1.7 KB |
| omapfb_dss.h | -rw-r--r-- | 23.9 KB |
| omapvrfb.h | -rw-r--r-- | 1.8 KB |
| permedia2.h | -rw-r--r-- | 9.0 KB |
| platform_lcd.h | -rw-r--r-- | 440 bytes |
| pm3fb.h | -rw-r--r-- | 45.3 KB |
| pmag-ba-fb.h | -rw-r--r-- | 1.0 KB |
| pmagb-b-fb.h | -rw-r--r-- | 2.3 KB |
| pxa168fb.h | -rw-r--r-- | 2.5 KB |
| radeon.h | -rw-r--r-- | 109.2 KB |
| s1d13xxxfb.h | -rw-r--r-- | 9.9 KB |
| sa1100fb.h | -rw-r--r-- | 1.3 KB |
| samsung_fimd.h | -rw-r--r-- | 17.0 KB |
| sh_mobile_lcdc.h | -rw-r--r-- | 6.0 KB |
| sisfb.h | -rw-r--r-- | 606 bytes |
| sstfb.h | -rw-r--r-- | 11.0 KB |
| tdfx.h | -rw-r--r-- | 5.3 KB |
| tgafb.h | -rw-r--r-- | 6.9 KB |
| trident.h | -rw-r--r-- | 3.2 KB |
| udlfb.h | -rw-r--r-- | 2.9 KB |
| uvesafb.h | -rw-r--r-- | 2.9 KB |
| vga.h | -rw-r--r-- | 13.7 KB |
| videomode.h | -rw-r--r-- | 1.3 KB |
| w100fb.h | -rw-r--r-- | 3.6 KB |
Computing file changes ...
