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authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2011-12-29 15:16:28 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-01-09 18:25:56 +0000
commit30fa98480b782999248ce8290136aa58f22536cf (patch)
tree39136ed3fae074abc0178c0b78a2e242700b4cc0 /ipc/shm.c
parent9cf075f8656524abc44ad3ff2ec3834fe76f186f (diff)
downloadlinux-30fa98480b782999248ce8290136aa58f22536cf.tar.bz2
mtd: remove extra retlen assignment
MTD functions always assign the 'retlen' argument to 0 at the very beginning - the callers do not have to do this. I used the following semantic patch to find these places: @@ identifier retlen; expression a, b, c, d, e; constant C; type T; @@ ( - retlen = C; | T -retlen = C + retlen ; ) ... when != retlen when exists ( mtd_read(a, b, c, &retlen, d) | mtd_write(a, b, c, &retlen, d) | mtd_panic_write(a, b, c, &retlen, d) | mtd_point(a, b, c, &retlen, d, e) | mtd_read_fact_prot_reg(a, b, c, &retlen, d) | mtd_write_user_prot_reg(a, b, c, &retlen, d) | mtd_read_user_prot_reg(a, b, c, &retlen, d) | mtd_writev(a, b, c, d, &retlen) ) I ran it twice, because there were cases of double zero assigments in mtd tests. Then I went through the patch to verify that spatch did not find any false positives. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'ipc/shm.c')
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