linux-kernel - [PATCH 1/4] drivers/staging: adjust double test

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Date:	Thu, 12 Jan 2012 22:33:05 +0100
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	Greg Kroah-Hartman <gregkh@...e.de>
Cc:	kernel-janitors@...r.kernel.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] drivers/staging: adjust double test

From: Julia Lawall <Julia.Lawall@...6.fr>

Rewrite a duplicated test to test the correct value

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E;
@@

(
* E
  || ... || E
|
* E
  && ... && E
)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
 drivers/staging/gma500/mdfld_dsi_pkg_sender.c |    6 ++----
 drivers/staging/rtl8192e/rtllib_rx.c          |    2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 6c5061f..13979b5 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -2453,7 +2453,7 @@ static inline void update_network(struct rtllib_network *dst,
 	if (src->wmm_param[0].ac_aci_acm_aifsn ||
 	   src->wmm_param[1].ac_aci_acm_aifsn ||
 	   src->wmm_param[2].ac_aci_acm_aifsn ||
-	   src->wmm_param[1].ac_aci_acm_aifsn)
+	   src->wmm_param[3].ac_aci_acm_aifsn)
 		memcpy(dst->wmm_param, src->wmm_param, WME_AC_PRAM_LEN);
 
 	dst->SignalStrength = src->SignalStrength;
diff --git a/drivers/staging/gma500/mdfld_dsi_pkg_sender.c b/drivers/staging/gma500/mdfld_dsi_pkg_sender.c
index 9b96a5c..3a9f44f 100644
--- a/drivers/staging/gma500/mdfld_dsi_pkg_sender.c
+++ b/drivers/staging/gma500/mdfld_dsi_pkg_sender.c
@@ -1249,8 +1249,7 @@ int mdfld_dsi_read_gen_hs(struct mdfld_dsi_pkg_sender *sender,
 			u32 *data,
 			u16 len)
 {
-	if (!sender || !data || param_num < 0 || param_num > 2
-		|| !data || !len) {
+	if (!sender || param_num < 0 || param_num > 2 || !data || !len) {
 		DRM_ERROR("Invalid parameters\n");
 		return -EINVAL;
 	}
@@ -1267,8 +1266,7 @@ int mdfld_dsi_read_gen_lp(struct mdfld_dsi_pkg_sender *sender,
 			u32 *data,
 			u16 len)
 {
-	if (!sender || !data || param_num < 0 || param_num > 2
-		|| !data || !len) {
+	if (!sender || param_num < 0 || param_num > 2 || !data || !len) {
 		DRM_ERROR("Invalid parameters\n");
 		return -EINVAL;
 	}

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