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mtd: cfi_cmdset_0002: Initialize datum before calling map_word_load_partial

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In do_otp_write we must initialize the variable datum before calling
map_word_load_partial. Otherwise the upper bits of datum may be undefined,
which later causes problems in chip_good called by do_write_oneword.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Christian Riesch 2015-03-31 23:29:22 +02:00 committed by Brian Norris
parent 4612c715a6
commit 636fdbf88e
1 changed files with 1 additions and 1 deletions
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drivers/mtd/chips/cfi_cmdset_0002.c
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@ -1295,7 +1295,7 @@ static int do_otp_write(struct map_info *map, struct flchip *chip, loff_t adr,
unsigned long bus_ofs = adr & ~(map_bankwidth(map)-1);
int gap = adr - bus_ofs;
int n = min_t(int, len, map_bankwidth(map) - gap);
map_word datum;
map_word datum = map_word_ff(map);
if (n != map_bankwidth(map)) {
/* partial write of a word, load old contents */