fs/binfmt_elf.c: don't free interpreter's ELF pheaders on common path

Static executables don't need to free NULL pointer.

It doesn't matter really because static executable is not common scenario
but do it anyway out of pedantry.

Signed-off-by: Alexey Dobriyan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/20200219185330.GA4933@avx2
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index a3a9429ef1d2a25fb114da3917ebdb6ba94a3a90..13f25e241ac46cbd2f5ffa23de45e60a035a0c1a 100644 (file)
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1076,6 +1076,7 @@ out_free_interp:
                fput(interpreter);
 
                kfree(interp_elf_ex);
+               kfree(interp_elf_phdata);
        } else {
                elf_entry = e_entry;
                if (BAD_ADDR(elf_entry)) {
@@ -1084,7 +1085,6 @@ out_free_interp:
                }
        }
 
-       kfree(interp_elf_phdata);
        kfree(elf_phdata);
 
        set_binfmt(&elf_format);