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authorMagnus Damm <magnus@valinux.co.jp>2006-07-10 04:44:09 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-10 13:24:15 -0700
commit73ca66b97b73257a7d832d502c36fc19fe847809 (patch)
treed39f50b1931d67c51e56f891b785be1143599177 /drivers/media
parent454d6fbc48374be8f53b9bafaa86530cf8eb3bc1 (diff)
[PATCH] release_firmware() fixes
Use release_firmware() to free requested resources. According to Documentation/firmware_class/README the request_firmware() call should be followed by a release_firmware(). Some drivers do not however free the firmware previously allocated with request_firmware(). This patch tries to fix this by making sure that release_firmware() is used as expected. Signed-off-by: Magnus Damm <magnus@valinux.co.jp> Acked-by: Marcel Holtmann <marcel@holtmann.org> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/dvb/frontends/nxt200x.c4
-rw-r--r--drivers/media/dvb/frontends/or51211.c2
-rw-r--r--drivers/media/dvb/frontends/sp8870.c2
-rw-r--r--drivers/media/dvb/frontends/sp887x.c2
-rw-r--r--drivers/media/video/cx88/cx88-blackbird.c3
5 files changed, 8 insertions, 5 deletions
diff --git a/drivers/media/dvb/frontends/nxt200x.c b/drivers/media/dvb/frontends/nxt200x.c
index 55671cb5255e..87c286ee6a00 100644
--- a/drivers/media/dvb/frontends/nxt200x.c
+++ b/drivers/media/dvb/frontends/nxt200x.c
@@ -896,9 +896,9 @@ static int nxt2002_init(struct dvb_frontend* fe)
}
ret = nxt2002_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("nxt2002: Writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("nxt2002: Firmware upload complete\n");
@@ -960,9 +960,9 @@ static int nxt2004_init(struct dvb_frontend* fe)
}
ret = nxt2004_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("nxt2004: Writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("nxt2004: Firmware upload complete\n");
diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c
index 26bed616fabe..2bf124b53689 100644
--- a/drivers/media/dvb/frontends/or51211.c
+++ b/drivers/media/dvb/frontends/or51211.c
@@ -437,10 +437,10 @@ static int or51211_init(struct dvb_frontend* fe)
}
ret = or51211_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk(KERN_WARNING "or51211: Writing firmware to "
"device failed!\n");
- release_firmware(fw);
return ret;
}
printk(KERN_INFO "or51211: Firmware upload complete.\n");
diff --git a/drivers/media/dvb/frontends/sp8870.c b/drivers/media/dvb/frontends/sp8870.c
index 44ec5b9a4695..d98fd5c2e13e 100644
--- a/drivers/media/dvb/frontends/sp8870.c
+++ b/drivers/media/dvb/frontends/sp8870.c
@@ -318,7 +318,6 @@ static int sp8870_init (struct dvb_frontend* fe)
printk("sp8870: waiting for firmware upload (%s)...\n", SP8870_DEFAULT_FIRMWARE);
if (state->config->request_firmware(fe, &fw, SP8870_DEFAULT_FIRMWARE)) {
printk("sp8870: no firmware upload (timeout or file not found?)\n");
- release_firmware(fw);
return -EIO;
}
@@ -327,6 +326,7 @@ static int sp8870_init (struct dvb_frontend* fe)
release_firmware(fw);
return -EIO;
}
+ release_firmware(fw);
printk("sp8870: firmware upload complete\n");
/* enable TS output and interface pins */
diff --git a/drivers/media/dvb/frontends/sp887x.c b/drivers/media/dvb/frontends/sp887x.c
index b0a2b02f6608..5c2f8f4e0ae5 100644
--- a/drivers/media/dvb/frontends/sp887x.c
+++ b/drivers/media/dvb/frontends/sp887x.c
@@ -520,9 +520,9 @@ static int sp887x_init(struct dvb_frontend* fe)
}
ret = sp887x_initial_setup(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("sp887x: writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("sp887x: firmware upload complete\n");
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 349632b48e93..b60177f173c3 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -453,11 +453,13 @@ static int blackbird_load_firmware(struct cx8802_dev *dev)
if (firmware->size != BLACKBIRD_FIRM_IMAGE_SIZE) {
dprintk(0, "ERROR: Firmware size mismatch (have %zd, expected %d)\n",
firmware->size, BLACKBIRD_FIRM_IMAGE_SIZE);
+ release_firmware(firmware);
return -1;
}
if (0 != memcmp(firmware->data, magic, 8)) {
dprintk(0, "ERROR: Firmware magic mismatch, wrong file?\n");
+ release_firmware(firmware);
return -1;
}
@@ -478,6 +480,7 @@ static int blackbird_load_firmware(struct cx8802_dev *dev)
}
if (checksum) {
dprintk(0, "ERROR: Firmware load failed (checksum mismatch).\n");
+ release_firmware(firmware);
return -1;
}
release_firmware(firmware);