[PATCH 7/11] drivers/net/wireless/ath9k: Move a dereference belowa NULL test

[Julia Lawall]

From: Julia Lawall <julia@xxxxxxx>

In each case, if the NULL test is necessary, then the dereference should be
moved below the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@xxxxxxx>

---
 drivers/net/wireless/ath9k/hw.c     |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index 98bc25c..7d1dac6 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -5581,11 +5581,12 @@ static inline bool ath9k_hw_run_init_cals(struct ath_hal *ah,
 	struct ath9k_channel ichan;
 	bool isCalDone;
 	struct hal_cal_list *currCal = ahp->ah_cal_list_curr;
-	const struct hal_percal_data *calData = currCal->calData;
+	const struct hal_percal_data *calData;
 	int i;
 
 	if (currCal == NULL)
 		return false;
+	calData = currCal->calData;
 
 	ichan.CalValid = 0;
 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/