iwlegacy: always check if got h/w access before write

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Before we write to the device register always check if
_il_grap_nic_access() was successful.

Change type return type _il_grap_nic_access() to bool, and
add likely()/unlikely() statements.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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This commit is contained in:

Stanislaw Gruszka 2012-02-13 11:23:09 +01:00 • committed by John W. Linville

parent b6603036ad

commit 1e0f32a43a

3 changed files with 21 additions and 18 deletions

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2

drivers/net/wireless/iwlegacy/4965-mac.c

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10

drivers/net/wireless/iwlegacy/common.c

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27

drivers/net/wireless/iwlegacy/common.h

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