diff options
author | Stefan Agner <stefan.agner@toradex.com> | 2019-11-12 13:57:30 +0100 |
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committer | Stefan Agner <stefan.agner@toradex.com> | 2019-11-12 13:57:30 +0100 |
commit | 401bf3f29b1aa6d9ca32bd3252fc9beabe93d80b (patch) | |
tree | 6dd86325823a9b44b6e696acbd077e68c47d3108 /arch/s390/mm/cmm.c | |
parent | 5a9c845fe261dec87f892f3fd3c2e32604d952c0 (diff) | |
parent | b260a0862e3a9fccdac23ec3b783911b098c1c74 (diff) |
Merge tag 'v5.3.10' into toradex_5.3.ytoradex_5.3.y
This is the 5.3.10 stable release
Diffstat (limited to 'arch/s390/mm/cmm.c')
-rw-r--r-- | arch/s390/mm/cmm.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c index 510a18299196..a51c892f14f3 100644 --- a/arch/s390/mm/cmm.c +++ b/arch/s390/mm/cmm.c @@ -298,16 +298,16 @@ static int cmm_timeout_handler(struct ctl_table *ctl, int write, } if (write) { - len = *lenp; - if (copy_from_user(buf, buffer, - len > sizeof(buf) ? sizeof(buf) : len)) + len = min(*lenp, sizeof(buf)); + if (copy_from_user(buf, buffer, len)) return -EFAULT; - buf[sizeof(buf) - 1] = '\0'; + buf[len - 1] = '\0'; cmm_skip_blanks(buf, &p); nr = simple_strtoul(p, &p, 0); cmm_skip_blanks(p, &p); seconds = simple_strtoul(p, &p, 0); cmm_set_timeout(nr, seconds); + *ppos += *lenp; } else { len = sprintf(buf, "%ld %ld\n", cmm_timeout_pages, cmm_timeout_seconds); @@ -315,9 +315,9 @@ static int cmm_timeout_handler(struct ctl_table *ctl, int write, len = *lenp; if (copy_to_user(buffer, buf, len)) return -EFAULT; + *lenp = len; + *ppos += len; } - *lenp = len; - *ppos += len; return 0; } |