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usb: misc: cytherm: don't print on ENOMEM 

All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wolfram Sang 2016-08-25 19:39:14 +02:00 committed by Greg Kroah-Hartman
parent e83c06e99d
commit 29a99df17b
1 changed files with 8 additions and 24 deletions
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32
drivers/usb/misc/cytherm.c
View File

@ -101,10 +101,8 @@ static ssize_t set_brightness(struct device *dev, struct device_attribute *attr,
int retval;
buffer = kmalloc(8, GFP_KERNEL);
if (!buffer) {
dev_err(&cytherm->udev->dev, "out of memory\n");
if (!buffer)
return 0;
}
cytherm->brightness = simple_strtoul(buf, NULL, 10);
@ -148,10 +146,8 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char
int temp, sign;
buffer = kmalloc(8, GFP_KERNEL);
if (!buffer) {
dev_err(&cytherm->udev->dev, "out of memory\n");
if (!buffer)
return 0;
}
/* read temperature */
retval = vendor_command(cytherm->udev, READ_RAM, TEMP, 0, buffer, 8);
@ -192,10 +188,8 @@ static ssize_t show_button(struct device *dev, struct device_attribute *attr, ch
unsigned char *buffer;
buffer = kmalloc(8, GFP_KERNEL);
if (!buffer) {
dev_err(&cytherm->udev->dev, "out of memory\n");
if (!buffer)
return 0;
}
/* check button */
retval = vendor_command(cytherm->udev, READ_RAM, BUTTON, 0, buffer, 8);
@ -230,10 +224,8 @@ static ssize_t show_port0(struct device *dev, struct device_attribute *attr, cha
unsigned char *buffer;
buffer = kmalloc(8, GFP_KERNEL);
if (!buffer) {
dev_err(&cytherm->udev->dev, "out of memory\n");
if (!buffer)
return 0;
}
retval = vendor_command(cytherm->udev, READ_PORT, 0, 0, buffer, 8);
if (retval)
@ -257,10 +249,8 @@ static ssize_t set_port0(struct device *dev, struct device_attribute *attr, cons
int tmp;
buffer = kmalloc(8, GFP_KERNEL);
if (!buffer) {
dev_err(&cytherm->udev->dev, "out of memory\n");
if (!buffer)
return 0;
}
tmp = simple_strtoul(buf, NULL, 10);
@ -290,10 +280,8 @@ static ssize_t show_port1(struct device *dev, struct device_attribute *attr, cha
unsigned char *buffer;
buffer = kmalloc(8, GFP_KERNEL);
if (!buffer) {
dev_err(&cytherm->udev->dev, "out of memory\n");
if (!buffer)
return 0;
}
retval = vendor_command(cytherm->udev, READ_PORT, 1, 0, buffer, 8);
if (retval)
@ -317,10 +305,8 @@ static ssize_t set_port1(struct device *dev, struct device_attribute *attr, cons
int tmp;
buffer = kmalloc(8, GFP_KERNEL);
if (!buffer) {
dev_err(&cytherm->udev->dev, "out of memory\n");
if (!buffer)
return 0;
}
tmp = simple_strtoul(buf, NULL, 10);
@ -351,10 +337,8 @@ static int cytherm_probe(struct usb_interface *interface,
int retval = -ENOMEM;
dev = kzalloc (sizeof(struct usb_cytherm), GFP_KERNEL);
if (dev == NULL) {
dev_err (&interface->dev, "Out of memory\n");
if (!dev)
goto error_mem;
}
dev->udev = usb_get_dev(udev);