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xen/xenbus: Remove BUG_ON() when error string trucated

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xenbus_va_dev_error() is for printing error, so when error string is
too long to be truncated, need not BUG_ON(), still return truncation
string is OK.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Chen Gang 2014-09-26 23:36:03 +08:00 committed by David Vrabel
parent c7440a2f22
commit 305559f165
1 changed files with 1 additions and 4 deletions
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5
drivers/xen/xenbus/xenbus_client.c
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@ -259,7 +259,6 @@ static char *error_path(struct xenbus_device *dev)
static void xenbus_va_dev_error(struct xenbus_device *dev, int err,
const char *fmt, va_list ap)
{
int ret;
unsigned int len;
char *printf_buffer = NULL;
char *path_buffer = NULL;
@ -270,9 +269,7 @@ static void xenbus_va_dev_error(struct xenbus_device *dev, int err,
goto fail;
len = sprintf(printf_buffer, "%i ", -err);
ret = vsnprintf(printf_buffer+len, PRINTF_BUFFER_SIZE-len, fmt, ap);
BUG_ON(len + ret > PRINTF_BUFFER_SIZE-1);
vsnprintf(printf_buffer+len, PRINTF_BUFFER_SIZE-len, fmt, ap);
dev_err(&dev->dev, "%s\n", printf_buffer);