linux-kernel - [PATCH v2] ath6kl: Use vmalloc for loading firmware using api1 method and use kvfree

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Message-Id: <1448774038-26984-1-git-send-email-motobud@gmail.com>
Date:	Sat, 28 Nov 2015 23:13:58 -0600
From:	Brent Taylor <motobud@...il.com>
To:	kvalo@....qualcomm.com
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kenrel.org,
	linux-kernel@...r.kernel.org, ath6kl@...ts.infradead.org,
	Brent Taylor <motobud@...il.com>
Subject: [PATCH v2] ath6kl: Use vmalloc for loading firmware using api1 method and use kvfree

Signed-off-by: Brent Taylor <motobud@...il.com>

ath6kl: Use vmalloc for loading firmware using api1 method and free using kvfree
---
Changes v1 -> v2:
   - simplify memory allocation
   - use kvfree

 drivers/net/wireless/ath/ath6kl/core.c | 2 +-
 drivers/net/wireless/ath/ath6kl/init.c | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/core.c b/drivers/net/wireless/ath/ath6kl/core.c
index 4ec02ce..052e58b 100644
--- a/drivers/net/wireless/ath/ath6kl/core.c
+++ b/drivers/net/wireless/ath/ath6kl/core.c
@@ -343,7 +343,7 @@ void ath6kl_core_cleanup(struct ath6kl *ar)
 
 	kfree(ar->fw_board);
 	kfree(ar->fw_otp);
-	vfree(ar->fw);
+	kvfree(ar->fw);
 	kfree(ar->fw_patch);
 	kfree(ar->fw_testscript);
 
diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index 6e473fa..836afea2 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -673,10 +673,15 @@ static int ath6kl_get_fw(struct ath6kl *ar, const char *filename,
 		return ret;
 
 	*fw_len = fw_entry->size;
-	*fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL);
+	if (&ar->fw == fw)
+		*fw = vmalloc(fw_entry->size);
+	else
+		*fw = kmalloc(fw_entry->size);
 
 	if (*fw == NULL)
 		ret = -ENOMEM;
+	else
+		memcpy(*fw, fw_entry->data, fw_entry->size);
 
 	release_firmware(fw_entry);
 
-- 
2.6.3

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