diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-11-01 14:27:38 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-11-01 14:27:38 -0300 |
commit | 1eae9639aac0f8de4d284f567ec722a822b52513 (patch) | |
tree | 34e45a5c5e6a1033a444bea952ba9199e57f3a19 /drivers/s390/char/con3270.c | |
parent | 037d32aa8f748e39844d2a5b607fb063b4583843 (diff) |
Linux-libre 4.8.6-gnupck-4.8.6-gnu
Diffstat (limited to 'drivers/s390/char/con3270.c')
-rw-r--r-- | drivers/s390/char/con3270.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c index 6b1577c73..285b4006f 100644 --- a/drivers/s390/char/con3270.c +++ b/drivers/s390/char/con3270.c @@ -124,7 +124,12 @@ con3270_create_status(struct con3270 *cp) static void con3270_update_string(struct con3270 *cp, struct string *s, int nr) { - if (s->len >= cp->view.cols - 5) + if (s->len < 4) { + /* This indicates a bug, but printing a warning would + * cause a deadlock. */ + return; + } + if (s->string[s->len - 4] != TO_RA) return; raw3270_buffer_address(cp->view.dev, s->string + s->len - 3, cp->view.cols * (nr + 1)); @@ -460,11 +465,11 @@ con3270_cline_end(struct con3270 *cp) cp->cline->len + 4 : cp->view.cols; s = con3270_alloc_string(cp, size); memcpy(s->string, cp->cline->string, cp->cline->len); - if (s->len < cp->view.cols - 5) { + if (cp->cline->len < cp->view.cols - 5) { s->string[s->len - 4] = TO_RA; s->string[s->len - 1] = 0; } else { - while (--size > cp->cline->len) + while (--size >= cp->cline->len) s->string[size] = cp->view.ascebc[' ']; } /* Replace cline with allocated line s and reset cline. */ |