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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-05-02 08:59:33 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-05-02 08:59:33 +0300
commitb004c046df92c429202e899f3f117814a5eb02d3 (patch)
tree1ac2b86f3a22d67776025c40840f522e269558e3 /drivers/s390/char/sclp_tty.c
parentc04005ef3576893e2db315d9ea2cfa4cf88b2c05 (diff)
parentc72e4daa7ab2814e402f2b67dd1681ea4db446af (diff)
downloadlinux-rolling-lts.tar.xz
Merge v6.12.26linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/s390/char/sclp_tty.c')
-rw-r--r--drivers/s390/char/sclp_tty.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 892c18d2f87e..d3edacb6ee14 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -490,6 +490,17 @@ static const struct tty_operations sclp_ops = {
.flush_buffer = sclp_tty_flush_buffer,
};
+/* Release allocated pages. */
+static void __init __sclp_tty_free_pages(void)
+{
+ struct list_head *page, *p;
+
+ list_for_each_safe(page, p, &sclp_tty_pages) {
+ list_del(page);
+ free_page((unsigned long)page);
+ }
+}
+
static int __init
sclp_tty_init(void)
{
@@ -516,6 +527,7 @@ sclp_tty_init(void)
for (i = 0; i < MAX_KMEM_PAGES; i++) {
page = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (page == NULL) {
+ __sclp_tty_free_pages();
tty_driver_kref_put(driver);
return -ENOMEM;
}