[binutils-gdb] gdb: LoongArch: Use GDB style to check readbuf and writebuf

[binutils-gdb] gdb: LoongArch: Use GDB style to check readbuf and writebuf

[Tiezhu Yang]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2c3c88db125df810ff0209d4a1fbc49161b3d9cf

commit 2c3c88db125df810ff0209d4a1fbc49161b3d9cf
Author: Tiezhu Yang <yangtiezhu@loongson.cn>
Date:   Tue May 10 19:50:31 2022 +0800

    gdb: LoongArch: Use GDB style to check readbuf and writebuf
    
    The GDB style is to write 'if (readbuf != nullptr)', and the same for
    writebuf.
    
    Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>

Diff:
---
 gdb/loongarch-tdep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdb/loongarch-tdep.c b/gdb/loongarch-tdep.c
index 28f04094f64..8e74c9b779d 100644
--- a/gdb/loongarch-tdep.c
+++ b/gdb/loongarch-tdep.c
@@ -269,9 +269,9 @@ loongarch_return_value (struct gdbarch *gdbarch, struct value *function,
     }
 
   /* Extract the return value from the register where it was stored.  */
-  if (readbuf)
+  if (readbuf != nullptr)
     regcache->raw_read_part (regnum, 0, len, readbuf);
-  if (writebuf)
+  if (writebuf != nullptr)
     regcache->raw_write_part (regnum, 0, len, writebuf);
 
   return RETURN_VALUE_REGISTER_CONVENTION;