[PATCH] media, Micronas dvb-t: Fix mem leaks, don't needlessly zero mem, fix spelling

[PATCH] media, Micronas dvb-t: Fix mem leaks, don't needlessly zero mem, fix spelling

[Jesper Juhl]

In drivers/media/dvb/frontends/drxd_hard.c::load_firmware() I see 3
small issues:

 1) When the 'fw' variable goes out of scope we'll leak the memory
 allocated to it by request_firmware() by neglecting to call
 release_firmware().

 2) After a successful request_firmware() we allocate fw->size bytes
 of memory using kzalloc() only to immediately overwrite all that
 memory with memcpy(), so asking for zeroed memory seems like wasted
 effort - just use kmalloc().

 3) In one of the error messages "no memory" lacks a space and is
 written as "nomemory".

This patch fixes all 3 issues.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
---
 drivers/media/dvb/frontends/drxd_hard.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb/frontends/drxd_hard.c b/drivers/media/dvb/frontends/drxd_hard.c
index f132e49..0266a83 100644
--- a/drivers/media/dvb/frontends/drxd_hard.c
+++ b/drivers/media/dvb/frontends/drxd_hard.c
@@ -909,14 +909,16 @@ static int load_firmware(struct drxd_state *state, const char *fw_name)
 		return -EIO;
 	}
 
-	state->microcode = kzalloc(fw->size, GFP_KERNEL);
+	state->microcode = kmalloc(fw->size, GFP_KERNEL);
 	if (state->microcode == NULL) {
-		printk(KERN_ERR "drxd: firmware load failure: nomemory\n");
+		release_firmware(fw);
+		printk(KERN_ERR "drxd: firmware load failure: no memory\n");
 		return -ENOMEM;
 	}
 
 	memcpy(state->microcode, fw->data, fw->size);
 	state->microcode_length = fw->size;
+	release_firmware(fw);
 	return 0;
 }
 
-- 
1.7.6


-- 
Jesper Juhl <jj@chaosbits.net>       http://www.chaosbits.net/
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