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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-07-07 04:21:26 +0200 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-07-11 23:14:16 +0200 |
| commit | 1047c6e23c9bf7e2e0b0c0539b6d7289627c9f71 (patch) | |
| tree | 30de3bcb509ff55413bcadef841be4e16d5c7e58 /lib | |
| parent | 39a75f5af139eaa53758a8cb0e0788cfafdaf54c (diff) | |
| download | u-boot-1047c6e23c9bf7e2e0b0c0539b6d7289627c9f71.tar.gz u-boot-1047c6e23c9bf7e2e0b0c0539b6d7289627c9f71.tar.xz u-boot-1047c6e23c9bf7e2e0b0c0539b6d7289627c9f71.zip | |
efi_loader: fix efi_get_child_controllers()
Don't call calloc(0, ..).
Consider return value of efi_get_child_controllers().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_boottime.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 1591ad8300..0b16554ba2 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -3459,6 +3459,8 @@ static efi_status_t efi_get_child_controllers( * the buffer will be too large. But that does not harm. */ *number_of_children = 0; + if (!count) + return EFI_SUCCESS; *child_handle_buffer = calloc(count, sizeof(efi_handle_t)); if (!*child_handle_buffer) return EFI_OUT_OF_RESOURCES; @@ -3536,10 +3538,12 @@ static efi_status_t EFIAPI efi_disconnect_controller( number_of_children = 1; child_handle_buffer = &child_handle; } else { - efi_get_child_controllers(efiobj, - driver_image_handle, - &number_of_children, - &child_handle_buffer); + r = efi_get_child_controllers(efiobj, + driver_image_handle, + &number_of_children, + &child_handle_buffer); + if (r != EFI_SUCCESS) + return r; } /* Get the driver binding protocol */ |