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| author | Jiri Slaby <jslaby@suse.cz> | 2020-10-29 14:32:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-04 18:43:38 +0300 |
| commit | 9788c950ed4ad2020a7f2e8231abaf77e49d871a (patch) | |
| tree | e340b3dc56481b15566b8c02747b44df85c8e531 /drivers/tty/vt/keyboard.c | |
| parent | fe45d6578610caab01d0728878527046f0e023f8 (diff) | |
| download | linux-9788c950ed4ad2020a7f2e8231abaf77e49d871a.tar.xz | |
vt: keyboard, rename i to kb_func in vt_do_kdgkb_ioctl
There are too many one-letter variables in vt_do_kdgkb_ioctl which is
rather confusing. Rename 'i' to 'kb_func' and change its type to be the
same as its originating value (struct kbsentry.kb_func) -- unsigned
char.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20201029113222.32640-10-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vt/keyboard.c')
| -rw-r--r-- | drivers/tty/vt/keyboard.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index e47a1c6bfa44..55014f57a3de 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -2026,9 +2026,10 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) int sz, fnw_sz; int delta; char *first_free, *fj, *fnw; - int i, j, k; + int j, k; int ret; unsigned long flags; + unsigned char kb_func; if (!capable(CAP_SYS_TTY_CONFIG)) perm = 0; @@ -2045,7 +2046,7 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) goto reterr; } kbs->kb_string[sizeof(kbs->kb_string)-1] = '\0'; - i = array_index_nospec(kbs->kb_func, MAX_NR_FUNC); + kb_func = array_index_nospec(kbs->kb_func, MAX_NR_FUNC); switch (cmd) { case KDGKBSENT: { @@ -2053,7 +2054,7 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) ssize_t len = sizeof(user_kdgkb->kb_string); spin_lock_irqsave(&func_buf_lock, flags); - len = strlcpy(kbs->kb_string, func_table[i] ? : "", len); + len = strlcpy(kbs->kb_string, func_table[kb_func] ? : "", len); spin_unlock_irqrestore(&func_buf_lock, flags); ret = copy_to_user(user_kdgkb->kb_string, kbs->kb_string, @@ -2072,11 +2073,11 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) /* race aginst other writers */ again: spin_lock_irqsave(&func_buf_lock, flags); - q = func_table[i]; + q = func_table[kb_func]; /* fj pointer to next entry after 'q' */ first_free = funcbufptr + (funcbufsize - funcbufleft); - for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++) + for (j = kb_func + 1; j < MAX_NR_FUNC && !func_table[j]; j++) ; if (j < MAX_NR_FUNC) fj = func_table[j]; @@ -2094,7 +2095,7 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) func_table[k] += delta; } if (!q) - func_table[i] = fj; + func_table[kb_func] = fj; funcbufleft -= delta; } else { /* allocate a larger buffer */ sz = 256; @@ -2113,7 +2114,7 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) } if (!q) - func_table[i] = fj; + func_table[kb_func] = fj; /* copy data before insertion point to new location */ if (fj > funcbufptr) memmove(fnw, funcbufptr, fj - funcbufptr); @@ -2135,7 +2136,7 @@ int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) funcbufsize = sz; } /* finally insert item itself */ - strcpy(func_table[i], kbs->kb_string); + strcpy(func_table[kb_func], kbs->kb_string); spin_unlock_irqrestore(&func_buf_lock, flags); break; } |