Instead of open-coding the steps for extracting a null-terminated
string, use the newly available CStr::from_bytes_until_nul().

Suggested-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 drivers/gpu/nova-core/firmware/gsp.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpu/nova-core/firmware/gsp.rs b/drivers/gpu/nova-core/firmware/gsp.rs
index da97814cf859..1025b7f746eb 100644
--- a/drivers/gpu/nova-core/firmware/gsp.rs
+++ b/drivers/gpu/nova-core/firmware/gsp.rs
@@ -93,10 +93,7 @@ pub(super) fn elf64_section<'a, 'b>(elf: &'a [u8], name: &'b str) -> Option<&'a
 
             // Get the start of the name.
             elf.get(name_idx..)
-                // Stop at the first `0`.
-                .and_then(|nstr| nstr.get(0..=nstr.iter().position(|b| *b == 0)?))
-                // Convert into CStr. This should never fail because of the line above.
-                .and_then(|nstr| CStr::from_bytes_with_nul(nstr).ok())
+                .and_then(|nstr| CStr::from_bytes_until_nul(nstr).ok())
                 // Convert into str.
                 .and_then(|c_str| c_str.to_str().ok())
                 // Check that the name matches.
-- 
2.52.0