From: Jiri Slaby Date: Tue, 14 Jun 2022 09:05:30 +0000 (+0200) Subject: tty/vt: consolemap: use ARRAY_SIZE(), part II. X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=139f39be42fcd5f88366d6f3e6f05002027d3514;p=linux.git tty/vt: consolemap: use ARRAY_SIZE(), part II. The code still uses constants (macros) as bounds in loops after commit 17945d317a52 (tty/vt: consolemap: use ARRAY_SIZE()). The contants are at least macros used also in the definition of the arrays. But use ARRAY_SIZE() on two more places to ensure the loops never run out of bounds even if the array definition change. Reviewed-by: Ilpo Järvinen Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20220614090537.15557-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c index fff97ae87e00e..2039237b5266e 100644 --- a/drivers/tty/vt/consolemap.c +++ b/drivers/tty/vt/consolemap.c @@ -232,7 +232,7 @@ static void set_inverse_transl(struct vc_data *conp, struct uni_pagedict *p, } memset(q, 0, MAX_GLYPH); - for (j = 0; j < E_TABSZ; j++) { + for (j = 0; j < ARRAY_SIZE(translations[m]); j++) { glyph = conv_uni_to_pc(conp, t[j]); if (glyph >= 0 && glyph < MAX_GLYPH && q[glyph] < 32) { /* prefer '-' above SHY etc. */ @@ -367,7 +367,7 @@ int con_get_trans_old(unsigned char __user * arg) unsigned char outbuf[E_TABSZ]; console_lock(); - for (i = 0; i < E_TABSZ ; i++) + for (i = 0; i < ARRAY_SIZE(outbuf); i++) { ch = conv_uni_to_pc(vc_cons[fg_console].d, p[i]); outbuf[i] = (ch & ~0xff) ? 0 : ch;