Warnings before patch:
files: ['fs/ext4/mballoc.c']
Warning: fs/ext4/mballoc.c:6801 No description found for return value of 'ext4_group_add_blocks'
Warning: fs/ext4/mballoc.c:6878 No description found for return value of 'ext4_trim_extent'
Warning: fs/ext4/mballoc.c:7000 No description found for return value of 'ext4_trim_all_free'
Warning: fs/ext4/mballoc.c:7043 No description found for return value of 'ext4_trim_fs'
Warning: fs/ext4/mballoc.c:6801 No description found for return value of 'ext4_group_add_blocks'
Warning: fs/ext4/mballoc.c:6878 No description found for return value of 'ext4_trim_extent'
Warning: fs/ext4/mballoc.c:7000 No description found for return value of 'ext4_trim_all_free'
Warning: fs/ext4/mballoc.c:7043 No description found for return value of 'ext4_trim_fs'

Current warnings:
files: ['fs/ext4/mballoc.c']
Warning: fs/ext4/mballoc.c:6801 No description found for return value of 'ext4_group_add_blocks'
Warning: fs/ext4/mballoc.c:6878 No description found for return value of 'ext4_trim_extent'
Warning: fs/ext4/mballoc.c:7000 No description found for return value of 'ext4_trim_all_free'
Warning: fs/ext4/mballoc.c:7043 No description found for return value of 'ext4_trim_fs'
Warning: fs/ext4/mballoc.c:6801 No description found for return value of 'ext4_group_add_blocks'
Warning: fs/ext4/mballoc.c:6878 No description found for return value of 'ext4_trim_extent'
Warning: fs/ext4/mballoc.c:7000 No description found for return value of 'ext4_trim_all_free'
Warning: fs/ext4/mballoc.c:7043 No description found for return value of 'ext4_trim_fs'

Warnings before: 8 after: 8