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misc/at24: avoid infinite loop on write()

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This change fixes a problem of infinite zero byte write() without
an error status, if there is an attempt to write a file bigger than
EEPROM size over sysfs interface.

Signed-off-by: Vladimir Zapolskiy <[email protected]>
Cc: Wolfram Sang <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Vladimir Zapolskiy 2013-10-28 19:05:15 +02:00 • committed by Greg Kroah-Hartman
commit 7c65e29250
1 changed files with 3 additions and 0 deletions
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3
drivers/misc/eeprom/at24.c
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@ -428,6 +428,9 @@ static ssize_t at24_bin_write(struct file *filp, struct kobject *kobj,
{
struct at24_data *at24;
if (unlikely(off >= attr->size))
return -EFBIG;
at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
return at24_write(at24, buf, off, count);
}