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s390/con3270: Use NULL instead of 0 for pointers

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Get rid of sparse warnings:
CHECK   drivers/s390/char/con3270.c
  drivers/s390/char/con3270.c:531:15: warning: Using plain integer as NULL pointer
  drivers/s390/char/con3270.c:749:15: warning: Using plain integer as NULL pointer

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2024-11-07 17:18:44 +01:00
parent de786f0f83
commit 97b5cf6294
1 changed files with 2 additions and 2 deletions
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4
drivers/s390/char/con3270.c
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@ -528,7 +528,7 @@ static void tty3270_update(struct timer_list *t)
u8 cmd = TC_WRITE;
int rc, len;
wrq = xchg(&tp->write, 0);
wrq = xchg(&tp->write, NULL);
if (!wrq) {
tty3270_set_timer(tp, 1);
return;
@ -746,7 +746,7 @@ static void tty3270_issue_read(struct tty3270 *tp, int lock)
struct raw3270_request *rrq;
int rc;
rrq = xchg(&tp->read, 0);
rrq = xchg(&tp->read, NULL);
if (!rrq)
/* Read already scheduled. */
return;