staging: atomisp: remove "fun" strncpy warning
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 Dec 2018 12:50:55 +0000 (13:50 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Dec 2018 08:18:53 +0000 (09:18 +0100)
[for older kernels only, atomisp has been removed from upstream]

gcc-8 rightfully warns that this instance of strncpy is just copying
from the source, to the same source, for a few bytes.  Meaning this call
does nothing.  As the author of the code obviously meant it to do
something, but this code must be working properly, just replace the call
to the kernel internal strscpy() which gcc doesn't know about, so the
warning goes away.

As this driver was deleted from newer kernel versions, none of this
really matters but now at least we do not have to worry about a build
warning in the stable trees.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c

index 0fa7cb2423d863de2bcee3d86f7c3baecdfc84c3..0320c089f6881f9c7b6df82c43c29860682f1c15 100644 (file)
@@ -2860,9 +2860,7 @@ ia_css_debug_pipe_graph_dump_stage(
                        if (l <= ENABLE_LINE_MAX_LENGTH) {
                                /* It fits on one line, copy string and init */
                                /* other helper strings with empty string */
-                               strcpy_s(enable_info,
-                                       sizeof(enable_info),
-                                       ei);
+                               strscpy(enable_info, ei, sizeof(enable_info));
                        } else {
                                /* Too big for one line, find last comma */
                                p = ENABLE_LINE_MAX_LENGTH;