staging: mt7621-mmc: Fix: copy_from_user() returns a positive value

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copy_from_user() returns a positive value in case of an error, to fix
this the check is turned around, also a better return value is chosen.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Christian Lütke-Stetzkamp 2018-04-07 10:16:24 +02:00 • committed by Greg Kroah-Hartman

parent 2436c3156e

commit 0e0836625b

1 changed files with 2 additions and 3 deletions

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drivers/staging/mt7621-mmc/dbg.c

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