UBI: don't use array index before testing if it is negative

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I can't find anything guaranteeing that 'ubi_num' cannot be <0 in
drivers/mtd/ubi/kapi.c::ubi_open_volume(), and in fact the code
even tests for that and errors out if so. Unfortunately the test
for "ubi_num < 0" happens after we've already used 'ubi_num' as
an array index - bad thing to do if it is negative.
This patch moves the test earlier in the function and then moves
the indexing using that variable after the check. A bit safer :-)

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

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Jesper Juhl 2007-08-04 01:25:26 +02:00 • committed by Artem Bityutskiy

parent 8d2d4011f1

commit 0169b49d52

1 changed files with 7 additions and 2 deletions

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drivers/mtd/ubi/kapi.c

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