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OpenCloudOS-Kernel
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PM / OPP / clk: Remove unnecessary OOM message 

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 <lambert.quentin@gmail.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Quentin Lambert 2015-02-09 10:45:32 +01:00 committed by Rafael J. Wysocki
parent 04bf1c7f76
commit 59d84ca8c4
3 changed files with 3 additions and 10 deletions
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1
drivers/base/firmware_class.c
View File

@ -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;
}

4
drivers/base/power/clock_ops.c
View File

@ -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);

8
drivers/base/power/opp.c
View File

@ -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);