uevent: use add_uevent_var() instead of open coding it
Make use of add_uevent_var() instead of (often incorrectly) open coding it.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Eric Rannaud <eric.rannaud@gmail.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index c5ace19..1644e6fd 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -1163,6 +1163,7 @@
struct unit_directory *ud;
int i = 0;
int length = 0;
+ int retval = 0;
/* ieee1394:venNmoNspNverN */
char buf[8 + 1 + 3 + 8 + 2 + 8 + 2 + 8 + 3 + 8 + 1];
@@ -1176,14 +1177,11 @@
#define PUT_ENVP(fmt,val) \
do { \
- int printed; \
- envp[i++] = buffer; \
- printed = snprintf(buffer, buffer_size - length, \
- fmt, val); \
- if ((buffer_size - (length+printed) <= 0) || (i >= num_envp)) \
- return -ENOMEM; \
- length += printed+1; \
- buffer += printed+1; \
+ retval = add_uevent_var(envp, num_envp, &i, \
+ buffer, buffer_size, &length, \
+ fmt, val); \
+ if (retval) \
+ return retval; \
} while (0)
PUT_ENVP("VENDOR_ID=%06x", ud->vendor_id);