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authorGuenter Roeck <linux@roeck-us.net>2018-07-01 23:57:38 +0300
committerDavid S. Miller <davem@davemloft.net>2018-07-02 16:41:58 +0300
commit414372f633e378b3ef7443ce0f0370a6a4e5808b (patch)
treeb32219b799e3f7f26b09b0df76c6911dbec45338
parent100ec4bf09679583d45316fcf13611f66a8d0f88 (diff)
downloadlinux-414372f633e378b3ef7443ce0f0370a6a4e5808b.tar.xz
TTY: isdn: Replace strncpy with memcpy
gcc 8.1.0 complains: drivers/isdn/i4l/isdn_tty.c: In function 'isdn_tty_suspend.isra.1': drivers/isdn/i4l/isdn_tty.c:790:3: warning: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length drivers/isdn/i4l/isdn_tty.c:778:6: note: length computed here drivers/isdn/i4l/isdn_tty.c: In function 'isdn_tty_resume': drivers/isdn/i4l/isdn_tty.c:880:3: warning: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length drivers/isdn/i4l/isdn_tty.c:817:6: note: length computed here Using strncpy() is indeed less than perfect since the length of data to be copied has already been determined with strlen(). Replace strncpy() with memcpy() to address the warning and optimize the code a little. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/isdn/i4l/isdn_tty.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 960f26348bb5..b730037a0e2d 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -787,7 +787,7 @@ isdn_tty_suspend(char *id, modem_info *info, atemu *m)
cmd.parm.cmsg.para[3] = 4; /* 16 bit 0x0004 Suspend */
cmd.parm.cmsg.para[4] = 0;
cmd.parm.cmsg.para[5] = l;
- strncpy(&cmd.parm.cmsg.para[6], id, l);
+ memcpy(&cmd.parm.cmsg.para[6], id, l);
cmd.command = CAPI_PUT_MESSAGE;
cmd.driver = info->isdn_driver;
cmd.arg = info->isdn_channel;
@@ -877,7 +877,7 @@ isdn_tty_resume(char *id, modem_info *info, atemu *m)
cmd.parm.cmsg.para[3] = 5; /* 16 bit 0x0005 Resume */
cmd.parm.cmsg.para[4] = 0;
cmd.parm.cmsg.para[5] = l;
- strncpy(&cmd.parm.cmsg.para[6], id, l);
+ memcpy(&cmd.parm.cmsg.para[6], id, l);
cmd.command = CAPI_PUT_MESSAGE;
info->dialing = 1;
// strcpy(dev->num[i], n);