Author: Quentin Lambert <lambert.quentin@gmail.com>
This patch reduces the kernel size by removing error messages that duplicate
the normal OOM message.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr)
@@
identifier f,print,l;
expression e;
constant char[] c;
@@
e = \(kzalloc\|kmalloc\|devm_kzalloc\|devm_kmalloc\)(...);
if (e == NULL) {
<+...
- print(...,c,...);
... when any
(
goto l;
|
return ...;
)
...+> }
Signed-off-by: Quentin Lambert
Acked-by: Nishanth Menon
Signed-off-by: Rafael J. Wysocki
---
drivers/base/firmware_class.c | 1 -
drivers/base/power/clock_ops.c | 4 +---
drivers/base/power/opp.c | 8 ++------
3 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 58470c3..c3293f0 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -855,7 +855,6 @@ fw_create_instance(struct firmware *firmware, const char *fw_name,
fw_priv = kzalloc(sizeof(*fw_priv), GFP_KERNEL);
if (!fw_priv) {
- dev_err(device, "%s: kmalloc failed\n", __func__);
fw_priv = ERR_PTR(-ENOMEM);
goto exit;
}
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index d626576..7fdd017 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -81,10 +81,8 @@ static int __pm_clk_add(struct device *dev, const char *con_id,
return -EINVAL;
ce = kzalloc(sizeof(*ce), GFP_KERNEL);
- if (!ce) {
- dev_err(dev, "Not enough memory for clock entry.\n");
+ if (!ce)
return -ENOMEM;
- }
if (con_id) {
ce->con_id = kstrdup(con_id, GFP_KERNEL);
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 15bf299..677fb28 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -474,10 +474,8 @@ static int _opp_add_dynamic(struct device *dev, unsigned long freq,
/* allocate new OPP node */
new_opp = kzalloc(sizeof(*new_opp), GFP_KERNEL);
- if (!new_opp) {
- dev_warn(dev, "%s: Unable to create new OPP node\n", __func__);
+ if (!new_opp)
return -ENOMEM;
- }
/* Hold our list modification lock here */
mutex_lock(&dev_opp_list_lock);
@@ -695,10 +693,8 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
/* keep the node allocated */
new_opp = kmalloc(sizeof(*new_opp), GFP_KERNEL);
- if (!new_opp) {
- dev_warn(dev, "%s: Unable to create OPP\n", __func__);
+ if (!new_opp)
return -ENOMEM;
- }
mutex_lock(&dev_opp_list_lock); |
---
drivers/base/firmware_class.c | 1 -
drivers/base/power/clock_ops.c | 4 +---
drivers/base/power/opp.c | 8 ++------
3 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 58470c3..c3293f0 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -855,7 +855,6 @@ fw_create_instance(struct firmware *firmware, const char *fw_name,
fw_priv = kzalloc(sizeof(*fw_priv), GFP_KERNEL);
if (!fw_priv) {
- dev_err(device, "%s: kmalloc failed\n", __func__);
fw_priv = ERR_PTR(-ENOMEM);
goto exit;
}
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index d626576..7fdd017 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -81,10 +81,8 @@ static int __pm_clk_add(struct device *dev, const char *con_id,
return -EINVAL;
ce = kzalloc(sizeof(*ce), GFP_KERNEL);
- if (!ce) {
- dev_err(dev, "Not enough memory for clock entry.\n");
+ if (!ce)
return -ENOMEM;
- }
if (con_id) {
ce->con_id = kstrdup(con_id, GFP_KERNEL);
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 15bf299..677fb28 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -474,10 +474,8 @@ static int _opp_add_dynamic(struct device *dev, unsigned long freq,
/* allocate new OPP node */
new_opp = kzalloc(sizeof(*new_opp), GFP_KERNEL);
- if (!new_opp) {
- dev_warn(dev, "%s: Unable to create new OPP node\n", __func__);
+ if (!new_opp)
return -ENOMEM;
- }
/* Hold our list modification lock here */
mutex_lock(&dev_opp_list_lock);
@@ -695,10 +693,8 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
/* keep the node allocated */
new_opp = kmalloc(sizeof(*new_opp), GFP_KERNEL);
- if (!new_opp) {
- dev_warn(dev, "%s: Unable to create OPP\n", __func__);
+ if (!new_opp)
return -ENOMEM;
- }
mutex_lock(&dev_opp_list_lock);
