4.6-stable review patch. If anyone has any objections, please let me know.
------------------ From: Wolfram Sang <[email protected]> commit b3c0a4dab7e35a9b6d69c0415641d2280fdefb2b upstream. Because of an improper dereference, a stray 'C' character was output to the modalias when no 'compatible' was specified. This is the case for some old PowerMac drivers which only set the 'name' property. Fix it to let them match again. Reported-by: Mathieu Malaterre <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> Tested-by: Mathieu Malaterre <[email protected]> Cc: Philipp Zabel <[email protected]> Cc: Andreas Schwab <[email protected]> Fixes: 6543becf26fff6 ("mod/file2alias: make modalias generation safe for cross compiling") Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- scripts/mod/file2alias.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -384,7 +384,7 @@ static void do_of_entry_multi(void *symv len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*", (*type)[0] ? *type : "*"); - if (compatible[0]) + if ((*compatible)[0]) sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "", *compatible);
